I use the Lightning calendar to help me remember far into the past, so it would be nice to see the past on the iPhone too.Only events one year in the past or in the future are synchonized.
Suggestion:
On BirdieSync-Options provide a new Event option to choose the past and future period (e.g. as years), with one year as default, and unlimited as maximum.
Thank you for BirdieSync
Ulrich
Switzerland