Welcome to the forum Steve!

You might want to have a look at the Vega-Lite block (currently in beta but you can get access instantly).

Thanks, Bill.

I figured out how to resolve my initial problem: the Timeline Block takes whatever the first column is and uses it as the label. So I just had to make Event Name the first column, and date the second column, and it labelled things the way I wanted.

I’d like to do some more sophisticated things, like having thumbnails with the Event Names. I will look at whether Vega-Lite can do make the presentation more sophisticated.