Simple History shows recent changes made within WordPress, directly on your dashboard or on a separate page.
It’s good to have on sites where several people are involved in editing the content.
Free
WordPress: https://wordpress.org/plugins/simple-history/
Requirements: PHP 5.3
Installing Simple History
Can be installed on your site directly from the WordPress plugin directory.
To do so, log into the admin area of your site, http://yoursite.com/wp-login.php, navigate to Plugins > Add New
From the Add Plugins screen, enter ‘Simple History’ in the ‘Search Plugins’ field, and then select “Install”. Once the installation is complete select ‘Activate Plugin’ to enable Simple History