If I recall correctly it wasn't an entire tribe, but rather a smaller group of people lead by Chief Leader Sitting Bull. One year prior to their attempted fleeing of US territory, the Battle of Little Big Horn took place in Montana against the 7th Cavalry which resulted in the deaths of George Custer and five troops. It was Lakota and Northern Cheyenne who fought. Sitting Bull feared retaliation for their victory and that's why they were trying to leave. I think they were called the Hunkpapa Lakota, a branching of the Native Lakota. I hope this helps somewhat.
The correct answer is Michael Faraday. Specifically, he invented the electric dynamo, which was later developed further into the power generators we know today.
James Edward Oglethorpe, a philanthropist and an English general, along with twenty-one other men, created a charter to settle a new colony which they named Georgia in honor of King George II. ... In 1732, King George II, under the persuasion of Oglethorpe, signed off on the last of the 13 colonies
A mutation that happens only on one point of the gene
Plessy vs Ferguson is the one I think. Research it on wiki to confirm.