The split of Gondwana has nothing to do with the asteroid that whiped out dinosaurs. It startet to split way before the impact. The asteroid hit the earth ~66 million years ago, but Gondwana already startet to split ~150 million years ago.
The continent split because of the drift of the tectonic plates
Unrelated, but when I was a kid I thought China and Japan were a united land mass until WW2 when we nuked Japan, then it floated off into the ocean. This reminded me of that a little bit
Yeah, I know it started to drift because of the shiftbof the tectonic plates, but didn't know that the drift started happening before the asteroid impact. I thought the impact triggered the shift.