[O] Equivalent of timeline?

[James Harkins]

I recently had to make a document listing my professional activities (lectures 
and performances). Items are dated.

I would like to see an overview of them, sorted by date.

In the past I would have used a Timeline agenda for this, but that's no longer 
possible.

https://www.reddit.com/r/orgmode/comments/7hps9j/rip_orgtimeline/ provides a 
custom agenda command that is supposed(?) to mimic the old timeline, but it 
didn't.

So how does one do it?

hjh