For the lusitania, the germans justified the attack by stating that it was a enemy ship carrying munitions. it was really only a passenger ship, killing over 1,000 people after sunken.
You need to Paste the Chart you are talking about in order for me to answer it
The discovery of gold and mining on the West led to a railroad boost as more and more people were moving there in the hopes of becoming rich. The growth the West was experiencing ultimately led to the Federal Government pressuring the Nez Perce (natives of Wallowa Valley) to give up their homeland to them. Natives followed their tribe leader, Chief Joseph, and refused to be forced onto a reservation, so they walked for 1400 miles attempting to reach Canada, but meeting their sad end when they encountered the US Army and battled them in the Nez Perce War.
The fact they were the indigenous people that were promised land when first arriving in America