Which came first Pokemon fire red or ruby?

Ruby came first. Here they are in order.

1. Red, Blue, Yellow

2. Silver, Gold, Crystal

3. Ruby, Sapphire, Emerald

4. FireRed, LeafGreen

5. Diamond, Pearl (2007), Platinum (2009)

6. HeartGold, SoulSilver

7. Black, White (Coming in Japan this September, America spring 2011)

I think that's how it goes.