When Luneth finds the Wind Crystal, his adoptive father Topapa tells him that he was brought to Ur as a newborn baby ten years ago. Luneth's age is given as 14...
The surface world was supposed to have been in stasis for 1000 years, yet Cid recalls his voyage ten years before that resulted in him being stranded on the Floating Continent with the four children. Quite a mix-up, eh?