diff --git a/app/controllers/admin/activity_controller.rb b/app/controllers/admin/activity_controller.rb
new file mode 100644
index 000000000..8f7993a09
--- /dev/null
+++ b/app/controllers/admin/activity_controller.rb
@@ -0,0 +1,8 @@
+class Admin::ActivityController < Admin::BaseController
+  has_filters %w{all on_users on_proposals on_debates on_comments}
+
+  def show
+    @activity = Activity.for_render.send(@current_filter).order(created_at: :desc).page(params[:page])
+  end
+
+end
diff --git a/app/controllers/admin/comments_controller.rb b/app/controllers/admin/comments_controller.rb
index ebe2f1066..3a9c360f5 100644
--- a/app/controllers/admin/comments_controller.rb
+++ b/app/controllers/admin/comments_controller.rb
@@ -14,6 +14,7 @@ class Admin::CommentsController < Admin::BaseController
 
   def restore
     @comment.restore
+    Activity.log(current_user, :restore, @comment)
     redirect_to request.query_parameters.merge(action: :index)
   end
 
diff --git a/app/controllers/admin/debates_controller.rb b/app/controllers/admin/debates_controller.rb
index 544c3f23d..41e5af848 100644
--- a/app/controllers/admin/debates_controller.rb
+++ b/app/controllers/admin/debates_controller.rb
@@ -14,6 +14,7 @@ class Admin::DebatesController < Admin::BaseController
 
   def restore
     @debate.restore
+    Activity.log(current_user, :restore, @debate)
     redirect_to request.query_parameters.merge(action: :index)
   end
 
diff --git a/app/controllers/admin/proposals_controller.rb b/app/controllers/admin/proposals_controller.rb
index 4f399bff7..57e8809e2 100644
--- a/app/controllers/admin/proposals_controller.rb
+++ b/app/controllers/admin/proposals_controller.rb
@@ -14,6 +14,7 @@ class Admin::ProposalsController < Admin::BaseController
 
   def restore
     @proposal.restore
+    Activity.log(current_user, :restore, @proposal)
     redirect_to request.query_parameters.merge(action: :index)
   end
 
diff --git a/app/controllers/admin/users_controller.rb b/app/controllers/admin/users_controller.rb
index 013fe4e90..eed1c4fea 100644
--- a/app/controllers/admin/users_controller.rb
+++ b/app/controllers/admin/users_controller.rb
@@ -20,6 +20,7 @@ class Admin::UsersController < Admin::BaseController
 
   def restore
     @user.restore
+    Activity.log(current_user, :restore, @user)
     redirect_to request.query_parameters.merge(action: :index)
   end
 
diff --git a/app/controllers/moderation/comments_controller.rb b/app/controllers/moderation/comments_controller.rb
index 07c0201ee..7177911e8 100644
--- a/app/controllers/moderation/comments_controller.rb
+++ b/app/controllers/moderation/comments_controller.rb
@@ -14,21 +14,21 @@ class Moderation::CommentsController < Moderation::BaseController
   end
 
   def hide
-    @comment.hide
+    hide_comment @comment
   end
 
   def moderate
     @comments = @comments.where(id: params[:comment_ids])
 
     if params[:hide_comments].present?
-      @comments.accessible_by(current_ability, :hide).each(&:hide)
+      @comments.accessible_by(current_ability, :hide).each {|comment| hide_comment comment}
 
     elsif params[:ignore_flags].present?
       @comments.accessible_by(current_ability, :ignore_flag).each(&:ignore_flag)
 
     elsif params[:block_authors].present?
       author_ids = @comments.pluck(:user_id).uniq
-      User.where(id: author_ids).accessible_by(current_ability, :block).each(&:block)
+      User.where(id: author_ids).accessible_by(current_ability, :block).each {|user| block_user user}
     end
 
     redirect_to request.query_parameters.merge(action: :index)
@@ -40,4 +40,14 @@ class Moderation::CommentsController < Moderation::BaseController
       @comments = Comment.accessible_by(current_ability, :moderate)
     end
 
+    def hide_comment(comment)
+      comment.hide
+      Activity.log(current_user, :hide, comment)
+    end
+
+    def block_user(user)
+      user.block
+      Activity.log(current_user, :block, user)
+    end
+
 end
diff --git a/app/controllers/moderation/debates_controller.rb b/app/controllers/moderation/debates_controller.rb
index 1fe3eb4b4..57c6a0e05 100644
--- a/app/controllers/moderation/debates_controller.rb
+++ b/app/controllers/moderation/debates_controller.rb
@@ -14,21 +14,21 @@ class Moderation::DebatesController < Moderation::BaseController
   end
 
   def hide
-    @debate.hide
+    hide_debate @debate
   end
 
   def moderate
     @debates = @debates.where(id: params[:debate_ids])
 
     if params[:hide_debates].present?
-      @debates.accessible_by(current_ability, :hide).each(&:hide)
+      @debates.accessible_by(current_ability, :hide).each {|debate| hide_debate debate}
 
     elsif params[:ignore_flags].present?
       @debates.accessible_by(current_ability, :ignore_flag).each(&:ignore_flag)
 
     elsif params[:block_authors].present?
       author_ids = @debates.pluck(:author_id).uniq
-      User.where(id: author_ids).accessible_by(current_ability, :block).each(&:block)
+      User.where(id: author_ids).accessible_by(current_ability, :block).each {|user| block_user user}
     end
 
     redirect_to request.query_parameters.merge(action: :index)
@@ -40,4 +40,14 @@ class Moderation::DebatesController < Moderation::BaseController
       @debates = Debate.accessible_by(current_ability, :moderate)
     end
 
+    def hide_debate(debate)
+      debate.hide
+      Activity.log(current_user, :hide, debate)
+    end
+
+    def block_user(user)
+      user.block
+      Activity.log(current_user, :block, user)
+    end
+
 end
diff --git a/app/controllers/moderation/proposals_controller.rb b/app/controllers/moderation/proposals_controller.rb
index e7cf86043..e59f3c79f 100644
--- a/app/controllers/moderation/proposals_controller.rb
+++ b/app/controllers/moderation/proposals_controller.rb
@@ -15,21 +15,21 @@ class Moderation::ProposalsController < Moderation::BaseController
   end
 
   def hide
-    @proposal.hide
+    hide_proposal @proposal
   end
 
   def moderate
     @proposals = @proposals.where(id: params[:proposal_ids])
 
     if params[:hide_proposals].present?
-      @proposals.accessible_by(current_ability, :hide).each(&:hide)
+      @proposals.accessible_by(current_ability, :hide).each {|proposal| hide_proposal proposal}
 
     elsif params[:ignore_flags].present?
       @proposals.accessible_by(current_ability, :ignore_flag).each(&:ignore_flag)
 
     elsif params[:block_authors].present?
       author_ids = @proposals.pluck(:author_id).uniq
-      User.where(id: author_ids).accessible_by(current_ability, :block).each(&:block)
+      User.where(id: author_ids).accessible_by(current_ability, :block).each {|user| block_user user}
     end
 
     redirect_to request.query_parameters.merge(action: :index)
@@ -41,4 +41,14 @@ class Moderation::ProposalsController < Moderation::BaseController
       @proposals = Proposal.accessible_by(current_ability, :moderate)
     end
 
+    def hide_proposal(proposal)
+      proposal.hide
+      Activity.log(current_user, :hide, proposal)
+    end
+
+    def block_user(user)
+      user.block
+      Activity.log(current_user, :block, user)
+    end
+
 end
diff --git a/app/controllers/moderation/users_controller.rb b/app/controllers/moderation/users_controller.rb
index 39f4c200a..fc8b4488e 100644
--- a/app/controllers/moderation/users_controller.rb
+++ b/app/controllers/moderation/users_controller.rb
@@ -8,12 +8,14 @@ class Moderation::UsersController < Moderation::BaseController
   end
 
   def hide_in_moderation_screen
-    @user.block
+    block_user
+
     redirect_to request.query_parameters.merge(action: :index), notice: I18n.t('moderation.users.notice_hide')
   end
 
   def hide
-    @user.block
+    block_user
+
     redirect_to debates_path
   end
 
@@ -23,4 +25,9 @@ class Moderation::UsersController < Moderation::BaseController
     @users = User.with_hidden.search(params[:name_or_email]).page(params[:page]).for_render
   end
 
+  def block_user
+    @user.block
+    Activity.log(current_user, :block, @user)
+  end
+
 end
diff --git a/app/models/activity.rb b/app/models/activity.rb
new file mode 100644
index 000000000..977204669
--- /dev/null
+++ b/app/models/activity.rb
@@ -0,0 +1,28 @@
+class Activity < ActiveRecord::Base
+
+  belongs_to :actionable,  -> { with_hidden }, polymorphic: true
+  belongs_to :user, -> { with_hidden }
+
+  VALID_ACTIONS = %w( hide block restore )
+
+  validates :action, inclusion: {in: VALID_ACTIONS}
+
+  scope :on_proposals, -> { where(actionable_type: 'Proposal') }
+  scope :on_debates, -> { where(actionable_type: 'Debate') }
+  scope :on_users, -> { where(actionable_type: 'User') }
+  scope :on_comments, -> { where(actionable_type: 'Comment') }
+  scope :for_render, -> { includes(user: [:moderator, :administrator]).includes(:actionable) }
+
+  def self.log(user, action, actionable)
+    create(user: user, action: action.to_s, actionable: actionable)
+  end
+
+  def self.on(actionable)
+    where(actionable: actionable)
+  end
+
+  def self.by(user)
+    where(user: user)
+  end
+
+end
diff --git a/app/models/comment.rb b/app/models/comment.rb
index 6a3125285..187e35037 100644
--- a/app/models/comment.rb
+++ b/app/models/comment.rb
@@ -73,11 +73,11 @@ class Comment < ActiveRecord::Base
   end
 
   def after_hide
-    commentable_type.constantize.reset_counters(commentable_id, :comments)
+    commentable_type.constantize.with_hidden.reset_counters(commentable_id, :comments)
   end
 
   def after_restore
-    commentable_type.constantize.reset_counters(commentable_id, :comments)
+    commentable_type.constantize.with_hidden.reset_counters(commentable_id, :comments)
   end
 
   def reply?
diff --git a/app/views/admin/_menu.html.erb b/app/views/admin/_menu.html.erb
index 42d979209..89e1b6641 100644
--- a/app/views/admin/_menu.html.erb
+++ b/app/views/admin/_menu.html.erb
@@ -60,6 +60,13 @@
       <% end %>
     </li>
 
+    <li <%= 'class=active' if controller_name == 'activity' %>>
+      <%= link_to admin_activity_path do %>
+        <i class="icon-eye"></i>
+        <%= t('admin.menu.activity') %>
+      <% end %>
+    </li>
+
     <li <%= 'class=active' if controller_name == 'settings' %>>
       <%= link_to admin_settings_path do %>
         <i class="icon-settings"></i>
diff --git a/app/views/admin/activity/show.html.erb b/app/views/admin/activity/show.html.erb
new file mode 100644
index 000000000..0f422cfa8
--- /dev/null
+++ b/app/views/admin/activity/show.html.erb
@@ -0,0 +1,43 @@
+<h2><%= t("admin.activity.show.title") %></h2>
+
+<%= render 'shared/filter_subnav', i18n_namespace: "admin.activity.show" %>
+
+<h3><%= page_entries_info @activity %></h3>
+
+<table>
+  <tr>
+    <th><%= t("admin.activity.show.type") %></th>
+    <th><%= t("admin.activity.show.action") %></th>
+    <th> </th>
+    <th><%= t("admin.activity.show.by") %></th>
+  </tr>
+  <% @activity.each do |activity| %>
+    <tr id="<%= dom_id(activity) %>">
+      <td>
+        <%= activity.actionable_type.constantize.model_name.human %><br>
+        <span class="date"><%= l activity.actionable.created_at.to_date %></span>
+      </td>
+      <td>
+        <%= t("admin.activity.show.actions.#{activity.action}") %><br>
+        <span class="date"><%= l activity.created_at.to_date %></span>
+      </td>
+      <td>
+        <% case activity.actionable_type %>
+        <% when "User" %>
+          <%= activity.actionable.username %> (<%= activity.actionable.email %>)
+        <% when "Comment" %>
+          <%= activity.actionable.body %>
+        <% else %>
+          <strong><%= activity.actionable.title %></strong>
+          <br>
+          <div class="proposal-description">
+            <%= activity.actionable.description %>
+          </div>
+        <% end %>
+      </td>
+      <td><%= activity.user.name %> (<%= activity.user.email %>)</td>
+    </tr>
+  <% end %>
+</table>
+
+<%= paginate @activity %>
diff --git a/app/views/admin/users/index.html.erb b/app/views/admin/users/index.html.erb
index b3c0ad40b..bb71fcd8f 100644
--- a/app/views/admin/users/index.html.erb
+++ b/app/views/admin/users/index.html.erb
@@ -6,7 +6,7 @@
 
 <ul class="admin-list">
 <% @users.each do |user| %>
-  <li>
+  <li id="<%= dom_id(user) %>">
     <%= link_to user.name, admin_user_path(user) %>
 
     <%= link_to t("admin.actions.restore"),
diff --git a/config/i18n-tasks.yml b/config/i18n-tasks.yml
index 6173538ef..b1fa6d362 100644
--- a/config/i18n-tasks.yml
+++ b/config/i18n-tasks.yml
@@ -108,6 +108,7 @@ ignore_unused:
   - 'admin.proposals.index.filter*'
   - 'admin.organizations.index.filter*'
   - 'admin.users.index.filter*'
+  - 'admin.activity.show.filter*'
   - 'admin.comments.index.hidden_*'
   - 'moderation.comments.index.filter*'
   - 'moderation.comments.index.order*'
diff --git a/config/locales/activerecord.en.yml b/config/locales/activerecord.en.yml
index f17dc73de..303bd5ded 100644
--- a/config/locales/activerecord.en.yml
+++ b/config/locales/activerecord.en.yml
@@ -1,6 +1,7 @@
 en:
   activerecord:
     models:
+      activity: Activity
       comment: Comment
       debate: Debate
       proposal: Proposal
diff --git a/config/locales/activerecord.es.yml b/config/locales/activerecord.es.yml
index 0d6ecba40..3ba5e7cca 100644
--- a/config/locales/activerecord.es.yml
+++ b/config/locales/activerecord.es.yml
@@ -1,6 +1,9 @@
 es:
   activerecord:
     models:
+      activity:
+        one: actividad
+        other: actividades
       comment:
         one: Comentario
         other: Comentarios
diff --git a/config/locales/admin.en.yml b/config/locales/admin.en.yml
index 7317b2a31..c5d5616a4 100644
--- a/config/locales/admin.en.yml
+++ b/config/locales/admin.en.yml
@@ -20,6 +20,7 @@ en:
       officials: Officials
       moderators: Moderators
       stats: Statistics
+      activity: Moderation Activity
     organizations:
       index:
         title: Organizations
@@ -129,4 +130,20 @@ en:
       moderator:
         delete: Delete
         add: Add
-
+    activity:
+      show:
+        title: Activity of Moderators
+        action: Action
+        by: Moderated by
+        type: Type
+        filter: Show
+        filters:
+          all: All
+          on_proposals: On Proposals
+          on_debates: On Debates
+          on_comments: On Comments
+          on_users: On Users
+        actions:
+          hide: Hidden
+          restore: Restored
+          block: Blocked
diff --git a/config/locales/admin.es.yml b/config/locales/admin.es.yml
index 01117ff42..0e7903934 100644
--- a/config/locales/admin.es.yml
+++ b/config/locales/admin.es.yml
@@ -20,6 +20,7 @@ es:
       officials: Cargos públicos
       moderators: Moderadores
       stats: Estadísticas
+      activity: Actividad de moderadores
     organizations:
       index:
         title: Organizaciones
@@ -129,3 +130,20 @@ es:
       moderator:
         delete: Borrar
         add: Añadir
+    activity:
+      show:
+        title: Actividad de los Moderadores
+        action: 'Acción'
+        by: Moderado por
+        type: Tipo
+        filter: Mostrar
+        filters:
+          all: Todo
+          on_proposals: Propuestas
+          on_debates: Debates
+          on_comments: Comentarios
+          on_users: Usuarios
+        actions:
+          hide: Ocultado
+          restore: Restaurado
+          block: Bloqueado
diff --git a/config/routes.rb b/config/routes.rb
index ae52181bb..e60b50ca8 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -112,6 +112,8 @@ Rails.application.routes.draw do
     resources :moderators, only: [:index, :create, :destroy] do
       collection { get :search }
     end
+
+    resource :activity, controller: :activity, only: :show
   end
 
   namespace :moderation do
diff --git a/db/migrate/20150921095553_create_activities.rb b/db/migrate/20150921095553_create_activities.rb
new file mode 100644
index 000000000..3fff14205
--- /dev/null
+++ b/db/migrate/20150921095553_create_activities.rb
@@ -0,0 +1,13 @@
+class CreateActivities < ActiveRecord::Migration
+  def change
+    create_table :activities do |t|
+      t.integer :user_id
+      t.string :action
+      t.belongs_to :actionable, polymorphic: true
+      t.timestamps
+    end
+
+    add_index :activities, [:actionable_id, :actionable_type]
+    add_index :activities, :user_id
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 741f82940..22b6b730c 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,11 +11,23 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20150917102718) do
+ActiveRecord::Schema.define(version: 20150921095553) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
+  create_table "activities", force: :cascade do |t|
+    t.integer  "user_id"
+    t.string   "action"
+    t.integer  "actionable_id"
+    t.string   "actionable_type"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
+  add_index "activities", ["actionable_id", "actionable_type"], name: "index_activities_on_actionable_id_and_actionable_type", using: :btree
+  add_index "activities", ["user_id"], name: "index_activities_on_user_id", using: :btree
+
   create_table "addresses", force: :cascade do |t|
     t.integer  "user_id"
     t.string   "street"
diff --git a/spec/factories.rb b/spec/factories.rb
index cda9c01a8..caec0d6d9 100644
--- a/spec/factories.rb
+++ b/spec/factories.rb
@@ -33,6 +33,12 @@ FactoryGirl.define do
     uid "MyString"
   end
 
+  factory :activity do
+    user
+    action "hide"
+    association :actionable, factory: :proposal
+  end
+
   factory :verification_residence, class: Verification::Residence do
     user
     document_number  '12345678Z'
diff --git a/spec/features/admin/activity_spec.rb b/spec/features/admin/activity_spec.rb
new file mode 100644
index 000000000..d2836b2d1
--- /dev/null
+++ b/spec/features/admin/activity_spec.rb
@@ -0,0 +1,334 @@
+require 'rails_helper'
+
+feature 'Admin activity' do
+
+  background do
+    @admin = create(:administrator)
+    login_as(@admin.user)
+  end
+
+  context "Proposals" do
+    scenario "Shows moderation activity on proposals", :js do
+      proposal = create(:proposal)
+
+      visit proposal_path(proposal)
+
+      within("#proposal_#{proposal.id}") do
+        click_link 'Hide'
+      end
+
+      visit admin_activity_path
+
+      within("#activity_#{Activity.last.id}") do
+        expect(page).to have_content(proposal.title)
+        expect(page).to have_content("Hidden")
+        expect(page).to have_content(@admin.user.username)
+      end
+    end
+
+    scenario "Shows moderation activity from moderation screen" do
+      proposal1 = create(:proposal)
+      proposal2 = create(:proposal)
+      proposal3 = create(:proposal)
+
+      visit moderation_proposals_path(filter: 'all')
+
+      within("#proposal_#{proposal1.id}") do
+        check "proposal_#{proposal1.id}_check"
+      end
+
+      within("#proposal_#{proposal3.id}") do
+        check "proposal_#{proposal3.id}_check"
+      end
+
+      click_on "Hide proposals"
+
+      visit admin_activity_path
+
+      expect(page).to have_content(proposal1.title)
+      expect(page).to_not have_content(proposal2.title)
+      expect(page).to have_content(proposal3.title)
+    end
+
+    scenario "Shows admin restores" do
+      proposal = create(:proposal, :hidden)
+
+      visit admin_proposals_path
+
+      within("#proposal_#{proposal.id}") do
+        click_on "Restore"
+      end
+
+      visit admin_activity_path
+
+      within("#activity_#{Activity.last.id}") do
+        expect(page).to have_content(proposal.title)
+        expect(page).to have_content("Restored")
+        expect(page).to have_content(@admin.user.username)
+      end
+    end
+  end
+
+  context "Debates" do
+    scenario "Shows moderation activity on debates", :js do
+      debate = create(:debate)
+
+      visit debate_path(debate)
+
+      within("#debate_#{debate.id}") do
+        click_link 'Hide'
+      end
+
+      visit admin_activity_path
+
+      within("#activity_#{Activity.last.id}") do
+        expect(page).to have_content(debate.title)
+        expect(page).to have_content("Hidden")
+        expect(page).to have_content(@admin.user.username)
+      end
+    end
+
+    scenario "Shows moderation activity from moderation screen" do
+      debate1 = create(:debate)
+      debate2 = create(:debate)
+      debate3 = create(:debate)
+
+      visit moderation_debates_path(filter: 'all')
+
+      within("#debate_#{debate1.id}") do
+        check "debate_#{debate1.id}_check"
+      end
+
+      within("#debate_#{debate3.id}") do
+        check "debate_#{debate3.id}_check"
+      end
+
+      click_on "Hide debates"
+
+      visit admin_activity_path
+
+      expect(page).to have_content(debate1.title)
+      expect(page).to_not have_content(debate2.title)
+      expect(page).to have_content(debate3.title)
+    end
+
+    scenario "Shows admin restores" do
+      debate = create(:debate, :hidden)
+
+      visit admin_debates_path
+
+      within("#debate_#{debate.id}") do
+        click_on "Restore"
+      end
+
+      visit admin_activity_path
+
+      within("#activity_#{Activity.last.id}") do
+        expect(page).to have_content(debate.title)
+        expect(page).to have_content("Restored")
+        expect(page).to have_content(@admin.user.username)
+      end
+    end
+  end
+
+  context "Comments" do
+    scenario "Shows moderation activity on comments", :js do
+      debate = create(:debate)
+      comment = create(:comment, commentable: debate)
+
+      visit debate_path(debate)
+
+      within("#comment_#{comment.id}") do
+        click_link 'Hide'
+      end
+
+      visit admin_activity_path
+
+      within("#activity_#{Activity.last.id}") do
+        expect(page).to have_content(comment.body)
+        expect(page).to have_content("Hidden")
+        expect(page).to have_content(@admin.user.username)
+      end
+    end
+
+    scenario "Shows moderation activity from moderation screen" do
+      comment1 = create(:comment, body: "SPAM")
+      comment2 = create(:comment)
+      comment3 = create(:comment, body: "Offensive!")
+
+      visit moderation_comments_path(filter: 'all')
+
+      within("#comment_#{comment1.id}") do
+        check "comment_#{comment1.id}_check"
+      end
+
+      within("#comment_#{comment3.id}") do
+        check "comment_#{comment3.id}_check"
+      end
+
+      click_on "Hide comments"
+
+      visit admin_activity_path
+
+      expect(page).to have_content(comment1.body)
+      expect(page).to_not have_content(comment2.body)
+      expect(page).to have_content(comment3.body)
+    end
+
+    scenario "Shows admin restores" do
+      comment = create(:comment, :hidden)
+
+      visit admin_comments_path
+
+      within("#comment_#{comment.id}") do
+        click_on "Restore"
+      end
+
+      visit admin_activity_path
+
+      within("#activity_#{Activity.last.id}") do
+        expect(page).to have_content(comment.body)
+        expect(page).to have_content("Restored")
+        expect(page).to have_content(@admin.user.username)
+      end
+    end
+  end
+
+  context "User" do
+    scenario "Shows moderation activity on users" do
+      proposal = create(:proposal)
+
+      visit proposal_path(proposal)
+
+      within("#proposal_#{proposal.id}") do
+        click_link 'Ban author'
+      end
+
+      visit admin_activity_path
+
+      within("#activity_#{Activity.last.id}") do
+        expect(page).to have_content("Blocked")
+        expect(page).to have_content(proposal.author.username)
+        expect(page).to have_content(proposal.author.email)
+        expect(page).to have_content(@admin.user.username)
+        expect(page).not_to have_content(proposal.title)
+      end
+    end
+
+    scenario "Shows moderation activity from moderation screen" do
+      user = create(:user)
+
+      visit moderation_users_path(name_or_email: user.username)
+
+      within(".admin-list") do
+        click_link 'Ban'
+      end
+
+      visit admin_activity_path
+
+      within("#activity_#{Activity.last.id}") do
+        expect(page).to have_content(user.username)
+        expect(page).to have_content(user.email)
+        expect(page).to have_content(@admin.user.username)
+      end
+    end
+
+    scenario "Shows moderation activity from proposals moderation screen" do
+      proposal1 = create(:proposal)
+      proposal2 = create(:proposal)
+      proposal3 = create(:proposal)
+
+      visit moderation_proposals_path(filter: 'all')
+
+      within("#proposal_#{proposal1.id}") do
+        check "proposal_#{proposal1.id}_check"
+      end
+
+      within("#proposal_#{proposal3.id}") do
+        check "proposal_#{proposal3.id}_check"
+      end
+
+      click_on "Block authors"
+
+      visit admin_activity_path
+
+      expect(page).to have_content(proposal1.author.username)
+      expect(page).to have_content(proposal1.author.email)
+      expect(page).to have_content(proposal3.author.username)
+      expect(page).to have_content(proposal3.author.email)
+      expect(page).to_not have_content(proposal2.author.username)
+    end
+
+    scenario "Shows moderation activity from debates moderation screen" do
+      debate1 = create(:debate)
+      debate2 = create(:debate)
+      debate3 = create(:debate)
+
+      visit moderation_debates_path(filter: 'all')
+
+      within("#debate_#{debate1.id}") do
+        check "debate_#{debate1.id}_check"
+      end
+
+      within("#debate_#{debate3.id}") do
+        check "debate_#{debate3.id}_check"
+      end
+
+      click_on "Block authors"
+
+      visit admin_activity_path
+
+      expect(page).to have_content(debate1.author.username)
+      expect(page).to have_content(debate1.author.email)
+      expect(page).to have_content(debate3.author.username)
+      expect(page).to have_content(debate3.author.email)
+      expect(page).to_not have_content(debate2.author.username)
+    end
+
+    scenario "Shows moderation activity from comments moderation screen" do
+      comment1 = create(:comment, body: "SPAM")
+      comment2 = create(:comment)
+      comment3 = create(:comment, body: "Offensive!")
+
+      visit moderation_comments_path(filter: 'all')
+
+      within("#comment_#{comment1.id}") do
+        check "comment_#{comment1.id}_check"
+      end
+
+      within("#comment_#{comment3.id}") do
+        check "comment_#{comment3.id}_check"
+      end
+
+      click_on "Block authors"
+
+      visit admin_activity_path
+
+      expect(page).to have_content(comment1.author.username)
+      expect(page).to have_content(comment1.author.email)
+      expect(page).to have_content(comment3.author.username)
+      expect(page).to have_content(comment3.author.email)
+      expect(page).to_not have_content(comment2.author.username)
+    end
+
+    scenario "Shows admin restores" do
+      user = create(:user, :hidden)
+
+      visit admin_users_path
+
+      within("#user_#{user.id}") do
+        click_on "Restore"
+      end
+
+      visit admin_activity_path
+
+      within("#activity_#{Activity.last.id}") do
+        expect(page).to have_content(user.username)
+        expect(page).to have_content(user.email)
+        expect(page).to have_content("Restored")
+        expect(page).to have_content(@admin.user.username)
+      end
+    end
+  end
+
+end
\ No newline at end of file
diff --git a/spec/models/activity_spec.rb b/spec/models/activity_spec.rb
new file mode 100644
index 000000000..0c7b99027
--- /dev/null
+++ b/spec/models/activity_spec.rb
@@ -0,0 +1,88 @@
+require 'rails_helper'
+
+describe Activity do
+
+  it "should be valid for different actionables" do
+    expect(build(:activity, actionable: create(:proposal))).to be_valid
+    expect(build(:activity, actionable: create(:debate))).to be_valid
+    expect(build(:activity, actionable: create(:comment))).to be_valid
+    expect(build(:activity, actionable: create(:user))).to be_valid
+  end
+
+  it "should be a valid only with allowed actions" do
+    expect(build(:activity, action: "hide")).to be_valid
+    expect(build(:activity, action: "block")).to be_valid
+    expect(build(:activity, action: "restore")).to be_valid
+    expect(build(:activity, action: "dissapear")).to_not be_valid
+  end
+
+  describe "log" do
+    it "should create an activity entry" do
+      user = create(:user)
+      proposal = create(:proposal)
+
+      expect{ Activity.log(user, :hide, proposal) }.to change { Activity.count }.by(1)
+
+      activity = Activity.last
+      expect(activity.user_id).to eq(user.id)
+      expect(activity.action).to eq("hide")
+      expect(activity.actionable).to eq(proposal)
+    end
+  end
+
+  describe "on" do
+    it "should list all activity on an actionable object" do
+      proposal  = create(:proposal)
+      activity1 = create(:activity, action: "hide", actionable: proposal)
+      activity2 = create(:activity, action: "restore", actionable: proposal)
+      activity3 = create(:activity, action: "hide", actionable: proposal)
+      create(:activity, action: "restore", actionable: create(:debate))
+      create(:activity, action: "hide", actionable: create(:proposal))
+      create(:activity, action: "hide", actionable: create(:comment))
+      create(:activity, action: "block", actionable: create(:user))
+
+      expect(Activity.on(proposal).size).to eq 3
+      [activity1, activity2, activity3].each do |a|
+        expect(Activity.on(proposal)).to include(a)
+      end
+    end
+  end
+
+  describe "by" do
+    it "should list all activity of a user" do
+      user1 = create(:user)
+      activity1 = create(:activity, user: user1)
+      activity2 = create(:activity, user: user1, action: "restore", actionable: create(:debate))
+      activity3 = create(:activity, user: user1, action: "hide", actionable: create(:proposal))
+      activity4 = create(:activity, user: user1, action: "hide", actionable: create(:comment))
+      activity5 = create(:activity, user: user1, action: "block", actionable: create(:user))
+      create_list(:activity, 3)
+
+      expect(Activity.by(user1).size).to eq 5
+
+      [activity1, activity2, activity3, activity4, activity5].each do |a|
+        expect(Activity.by(user1)).to include(a)
+      end
+    end
+  end
+
+  describe "scopes by actionable" do
+    it "should filter by actionable type" do
+      on_proposal = create(:activity, actionable: create(:proposal))
+      on_debate   = create(:activity, actionable: create(:debate))
+      on_comment  = create(:activity, actionable: create(:comment))
+      on_user     = create(:activity, actionable: create(:user))
+
+      expect(Activity.on_proposals.size).to eq 1
+      expect(Activity.on_debates.size).to eq 1
+      expect(Activity.on_comments.size).to eq 1
+      expect(Activity.on_users.size).to eq 1
+
+      expect(Activity.on_proposals.first).to eq on_proposal
+      expect(Activity.on_debates.first).to eq on_debate
+      expect(Activity.on_comments.first).to eq on_comment
+      expect(Activity.on_users.first).to eq on_user
+    end
+  end
+
+end