One of the "paganic" beliefs that the Aztecs thought at the prehistoric time would be that in order to continue the sun on moving, it must be fed with a precious fluid, at which time they guessed it could be human blood. They made a lot of human sacrifices for the sun in which these humans are mostly slaves or prisoners.
Which time periods exactly?
I'm assuming you already know?
On the 11th of September 2001 planes (hijacked and then piloted by terrorists) flew into the world trade centre. (Two iconic buildings in the New York skyline). People were killed, many people. The buildings collapsed, causing even more damage. It was a tragic day.