I have an iPad 1 (IOS 5.1) and an iPhone 4s (IOS 5.1) and I'm using iCloud to sync my calendars. I don't have a Mac or any other Apple devices.
I am finding that my historic events more than about 4-5 weeks old are being deleted from my iPad & iPhone calendars but seem to be retained on the iCloud calendar.
I have switched off iCloud on the iPhone for now to try and resolve the problem but so far no change.
I have seen posts pointing to iTunes and changing the "do not sync older than 30 days" option but that only seems to link to Outlook and not iCloud.
Does anyone have any ideas on how I retain all my events on my iPad and my iPhone as well?