Q: iPad Calendar sync problem

Hello. I have a strange problem that has come up within the past few weeks.

When I create a new event in the calendar app on my iPad2 (ver 6.1.3), it doesn't sync with my other devices or iCloud. But, when I create a new event on any other device, my iPad will sync and the event will appear in the calendar.

So far I've tried going to settings>iCloud and turning Calendars OFF, then turning it back on. No luck there.

Any other suggestions? Thank you!