How do I delete everything from my calendar?

[Android Central Question]

The current version does not use S Planner, so those answers didn't apply. I've gone to the application manager and cleared cache and data, but the calendar information remains.

I've got 534 of one calendar entry on one day (534 copies of the same calendar entry), and deleting them one by one is not going to happen.

I'm using Smart Switch to sync Outlook to the Note 5, but the sync just puts all the duplicates back into Outlook.

 

[A Bochur]

go into settings>accounts>Google>{your email address}>turn off calendar sync. then go to settings>application manager>calendar>storage>clear date.
after you start using it again, it shouldn't sync