Everything that has happened across your properties, newest first.
The Activity page is the running record — everything that has happened across your properties, newest first.

It is grouped by day, with the most recent at the top, and each entry says what happened, on which property, and how long ago.
Search activity narrows it to a property, a document or a tenant.
It answers "what happened, and when" — the question that matters when something looks different from how you left it.
It is a record, not a control: you cannot undo something from here.
Only completed things are logged — something still in progress appears in your Inbox instead.