I had deleted a calendar I needed from my iCloud by mistake and then erased it from all my iPad 2 and iPhone 4s devices. How can I get all my entries back?
How to Recover iCloud calendar
* Type “calendars” into spotlight on the top right corner,
* Click the first search result said “Calendars – Library”
* Then clicke on the file that had ical icon on it and it restored them. Worked like a charm for me and you don’t need to use the time machine backup.