Every saved edit is preserved in the 'history'' of each WiserEarth page (organization, resource, event, job, solution, wikipage, profile, group bulletin board). Each edit is given a 'revision' number and on each page you can:

• View previous revisions, i.e. how a page looks like in the past.
• Compare between revisions to see what was deleted and added,
• Revert the page back to previous revision, in essence, undoing one or more edits made to a page.

To do these, you will need to click on the "Show History" link on the upper part of WiserEarth pages to see the following menu:

Clicking on any revision number, #85 in this example, will display how the wikipage looks like 7 months ago after an edit made by user MichaelK. One can then decide to revert back to that revision by clicking the 'new revision' link (at the bottom of the menu).

You can also compare between any two revisions by entering the revision number and clicking the 'Go' button.

In this example, the title of the wikipage was changed from 'Get Involved' (red background, stroke-out) to 'What you can do' (green background, underlined).

As WiserEarth is a community-driven site where content is created and edited by the community, this revision system is crucial. It encourages community members to edit content because if things don't work out, they or others can easily revert back to an earlier version of a page. This is the foundation of the famous 'wikidom' tenet: 'Be Bold!'.