::I was always of the opinion that Final Fantasy Tactics took place after Final Fantasy XII. In FFT, technology like airships and firearms are referred to as "lost": there's an airship graveyard, and the characters are unfamiliar with Mustadio's gun. You can read a game script here: http://db.gamefaqs.com/console/psx/file/final_fantasy_tactics_script.txt and doing a ctrl+f for "airship" will take you straight to the relevant passage.