He called them Indians because he thought he had landed in India.
This was a mixture of things.
The increase in population from soldiers and influx of immigrants caused the need for more food to be produced and more jobs to be demanded. So farmers started over producing which led to the Dust Bowl and, eventually, the Great Depression.
We have better electronics and more animals discovered
Answer:
Kenjutsu, Karate or Aikido
Explanation: