Dipity

 Dipity  (dipity.com) was a site to create and share timelines. It appears to have last been online 2016-09-24.

Description
Dipity described itself as: "Dipity is a free digital timeline website. Our mission is to organize the web's content by date and time. Users can create, share, embed and collaborate on interactive, visually engaging timelines that integrate video, audio, images, text, links, social media, location and timestamps."