Does any one know this day in history
 

Does any one know the name of the comet/comets that impacted earth. Seems like the only clues we have is the increasing ocean levels an Iceage way after the dino's. It appears like people migrated to deep south america, and the rest up over the landbridge......

Later when the ice melted southern people(mexicans/Indians) reclaimed North america......while a certain greek hero sailed to a land where he found the golden fleece.

Made some plans to come back an take it over.