I tried to use year view express if that's what you were suggesting, and found it complicated to make events never mind restoring it from a backup. If they are only saved as emails (as in emailing it to yourself) then you can only use the copy/paste function within the iPad. Or you could use a PC/Mac to put those emails as events using the build in calendar of the email account (I got my calendar events from Google Calender which only requires a Gmail account) and then putting the online calendar onto the standard calendar app or use any other calendar apps that can use online calendars onto their apps.