History › events on one machine. The range starts at the last 7 days.
Open Accounts server, then history › events. The range menu says last 7 days. Three lines are in that window: the disk warning, the external address change, and the hello from when it connected. Changing the range does not delete them.
Set the range to last 24 hours. The list reloads. Those three lines are older than a day, so the count says none recorded in this range. The lines are still stored. Set the menu back to last 7 days and they return. Last 30 days and everything are the same history, wider. Everything is capped at 500 rows.
A word in the summary is Search one machine's events. One event name is Read one machine's events. Warnings only are Show only warnings on one machine. The same menu for a sub-company user is Show one of your machines' events from the last day.