In 1519 in the Aztec capital of Tenochtitlan, a farmer came with news. This was right after a high priest had just finished offering a human sacrifice
Some strangely dressed men are here and they wish to see you, and King Montezuma II.
No! I guess you are not Quetzalcoatl after all! Prepare for battle
Forfeit your land, riches, and inferior people to me, Hernan Cortes. We Spanish will introduce you to a new, better way of life.
The Spanish's superior weaponry caused them to defeat the Aztecs swiftly just like they had with the other native Mexican civilizations. They defeated the Aztecs in only two years, from 1519 to 1521 even though they were drastically outnumbered.
The Spanish made the more than 14 million Aztecs who weren't in Tenochtitlan during the invasion convert to Christianity. They destroyed precious Aztec monuments to build churches all across what is now Mexico once they destroyed Tenochtitlan.
Today, hundreds of years later, we can still see the effects of the Spanish and Aztec fusion of cultures in Mexico. We see the Spanish influence by the Spanish language and the Christian religion. We see the Aztec influence every year when millions of people celebrate el Dia de Los Muertos or the day of the dead. The holiday uses many Aztec products and symbols.
We should have fused our cultures while we were alive because this is great!