By default (and to help keep your team focused on the future), Novi filters events to recurring events and upcoming events. To view an old event, you'll need to set the correct filter.
How to Find Past Events
Click the Filter button above the events list.
Update the Event Date filter to the Last Year, Past, All, or Custom (the filter defaults to Upcoming)
Custom is used for a specific date range
Use the Date From filter to either be blank (all events will show), or to a specific date in the past
(Optional) Update the Date To to narrow in on a specific time range of events
Clicking "Reset Filter" will return the list to the Novi default of future and recurring events only.