Answer:
- An enormous amount of land
- Lots of Native Americans deaths
Explanation:
I am actually a native american (Zuni and Laguna) so I know about a lot of the history that happened with native americans.
archduke Franz Ferdinand got assassinated, and all his allies attacked the country where the assassins were from, and then all of those countries allies attacked the allies of the countries attacking their ally, and then there was trench warfare in Europe, first tanks came around, poison gas was used and was very deadly, and in the end Germany got their butt kicked
So we know when certain things in history took place. Its hard somtimes to remember/memorize all the dates, but timelines do help.
Hope this helps :D