An Event is a date or date range representing something important to you.
Tap on a Timeline.
Tap the Add button to create an Event.
Enter a name for the Event. Select a date.
Tap on the Done button to save the Event.
The Event will appear on the list of Events for the selected Timeline.
You can optionally add a date range to an Event. Select start and end dates using the date pickers.
You can mark as date range as Ongoing by selecting the toggle.