The Timeline plugin has been deprecated and will no longer be maintained.
The Timeline plugin was created by the Scholars' Lab at the University of Virginia Library. It is a helper function for creating SIMILE Timelines from an array of items. It allows you to specify the metadata elements from which the time data should come, as well as the element that specifies the caption (by default, the Dublin Core Title element).
Timeline is available for download from the Omeka Addons directory. The source code is also available in the plugin's GitHub repository.Documentation is available in the README file.