Calendar is not backing up to my Mac Mini
I have depended religiously on backing up my iPhone Calendar daily to my Mac Mini Calendar. Recently, I noticed that appointments which I'd added to my phone were not ending up on my Mac at home. I've looked at settings on both devices and can't figure out why this isn't working. It makes the business calendar function of my phone pretty compromised.
I'm running the iPhone 6+ with iOS 8.3. I'm running the Mac Mini with iOS 10.8.5 on a mid-2010 machine.
Mac mini, OS X Mountain Lion (10.8.5), iPad 32gb V2