My first hack was a Mario World hack, if I remember correctly. In terms of Pokemon hacks though, I think it was Brown or Pokemon Z, and my first 3rd Gen hack was... well, technically it was a translated Fire Red game I bought, complete with a 'CHARM' and 'PIDGE' amongst other 5-letter-named pokemon already on it (I originally thought it was a normal game, so it seemed a little odd. I didn't know it was actually a translated version at the time, I just assumed it was 'broken'...) but my first 'real' hack was Shiny Gold.
And after finding out it was from here (I downloaded it from somewhere else.) I joined here to download other hacks, and decided I might as well post here, too.
...and I just gave my life-story again. :nervous: