Historical export of events, prior to 14-06-2022
We have a couple of options for you here.
The first (and likely easiest) is to use Front's full events export to generate a single CSV file (with whatever columns and event types you are interested in) to pull that historical data. This is the only option to get a full audit of all events.
The other option is using the API:
Use of GET /events API endpoint
The endpoint should be used in the following way to send dates;
GET /events?qvbefore]=1655164800
Regarding the limit, we have recently updated the API docs to correctly specify the 15 event limit per API call. Unfortunately calls to this endpoint are extremely resource intensive, so we have to limit the amount of data that can be returned by a single call to 15. Our engineers are investigating methods of optimizing this, but for now we have the 15 event limit in place.
I hope this is helpful - Please let me know if you have any further questions.
--Jason