Enslaved people from Africa were being traded for raw materials.
Because they <span>They resent to Aztec who had conquered them and demanded tribute to support the lavish of Aztec cities.
The leader of the Aztec of that time oppressed the member of their group with tyrannical rules. The resentment build up over the years and Cortez saw this as an opportunity to gained new reinforcement armies.</span>
Well at first people named things for how they looked, for example, the heart has a heartlike shape. Eventually scientists started using Greek and Latin roots and such in names to prevent confusion.
1. 1950 Korean war begins.
2.1954 First nuclear powered submarine launches: USS Nautilus
3. 1958 NASA is formed
4. 1961 JFK becomes president
<span>5. 1963 John F. Kennedy killed in Dallas
Hope this helps! :)</span>
Be the best you can be, live life well, treat people as you want to be treated