What method is used to determine when Events are removed from any given Event list?

From quick sampling of my events listings, it looks in the order of 60 days. Could anyone confirm?

Is there also a cap on the maximum number of stored events in that time (IE will it start truncating at e.g. 1000 events)?

Used to be 30 days, got boosted to 60 maybe 2-3 years ago. It's supposed to be unlimited, but maybe there's some hard to reach technical limitation.

It is 60 days for age-related removal, but it may not be done with daily granularity (i.e. once a week or something). There's no limit on the number of events, though.

Perfect. Thanks for the answers!