Temporis for Mac

From Bartas Technologies:

With Temporis, you can create stunning timelines for print, web sites, documents, presentations, and more. Timelines have traditionally been easiest to create on a Mac with graphics applications, even though such applications weren't designed to keep track of timeline data. With the drag-and-drop ease of Temporis, you can create a complete, customized timeline document in no time at all. Adding events is as easy as 'drawing' them in place. Temporis' timeline property controls are always ready at hand, making it easy to give your timeline a personal touch.