Stratholme, then countless UBRS runs. Then molten core opened and raided that, though we 5 manned some trash before it was a raid, back when you could CC giants; I remember someone getting T2 out of MC, good old days. Ended up killing Ragnaros in late April/May. If I remember right, you could "raid" everything except Molten Core back in December 2014, and we did.. Those days were funny, people had on level ~40 items and had little idea of their class mechanics.