Welcome to StackExchange Daniel. You are probably talking about this view: Events > Dashboard, which indeed only shows upcoming events and recents registrations.

There is another page, Events > Manage Events, that allows you to search and filter for events or show all events including past ones.

[![Manage Events interface][1]][1]

You could of course also create a report to list all (relevant) events and/or participants.


  [1]: https://i.sstatic.net/t9fqI.png