Slate is much more commonly found in wet areas, especially around rivers in the United States, so it wouldn't be very available to Natives who were more inland.
During his military campaigns in Florida, Andrew Jackson upset many people by "<span>fighting alongside the Seminoles" since many people believed they couldn't be trusted. </span>
1. Giving some of them trama
2. They give them more support
3. Sometime they come back angry or scared
Aztecs should be your answer
hope this helps