The Timeline allows you to view all of your family’s history in a single continuum.
It lists facts such as births, marriages and deaths. Photos, video files, documents, or special events are also included in the Timeline.
If you’ve got wedding video and photos on your family site, you’ll be able to see them in the Timeline.
The Timeline also offers different layers of presentation: you can zoom out and see the most salient events in your family’s history over the last century; or you can drill down to see the specifics of just one particular decade.
Notice- For something to show in the Timeline, it needs to have a date. To get a richer Timeline, it is important to add more photos and then to date them, or to add more events (such as birth, marriage and death).