ELMS Timelines allows you to associate time points to content.  It uses a library for displaying the time points called SIMILE.  To add a time point, highlight text in content and click to make the association.  Put in the start and end point for the time and save.  You will now have a tab as well as highlighted text that's associated to the timeline.

Timeline also appears under Course Resources which will display the aggregate of all time points for this course version.  This can provide a very unique way of back-link navigating through content or reviewing everything learned in a course visually.