Calendar wiped out on iPad 4th Generation I have an iPad (4th Generation) I just went to check my calendar and everything is gone. I don't have cloud back up because I don't have a recent enough Windows OS on my PC.

I just noticed that all the info seems to have been transferred to my iPhone. Is there a way to get it back to my iPad?
Just out of curiosity, what accounts are listed in Settings > Mail, Contacts and Calendars? Check this on both devices. Do any of the accounts have Calendar turned in?

If both devices are running iOS 5 or later (which your iPad definitely is), you can simply sign into iCloud and let the information sync across.