This has probably already been discussed before, but I was looking at the coasters and there are a lot of firsts for the park.
American Eagle (1981) - opened as the world's tallest and fastest coaster, and is still the world's tallest and fastest wooden racing coaster
Shockwave (1988) - opened as the world's tallest coaster
Iron Wolf (1990) - B&M's first coaster
Batman: The Ride (1992) - world's first inverted roller coaster
Raging Bull (1999) - world's first hyper twister roller coaster
If you know any others, post them here!