Organized Indian resistance to American control ended in 1890 after the battle at Wounded Knee in South Dakota. However, it is worth noting that many today do not regard that as a battle, but rather as the Massacre at Wounded Knee due to the gap in preparedness between Sioux and US forces and the high death toll of Sioux women and children. Prior to the events at Wounded Knee, US troops had assembled Hotchkiss guns pointed at the camped out Sioux and many US troops drank heavily the night before. After a spat of confusion where US troops sought to take all Sioux weapons, a shot was fired and US troops opened fire upon all inhabitants of the camp killing almost upwards of 200 men, women, and children.
Continents were in different locations in the past and thus have moved (drifted) to their present location.
Wegener - Published controversal book on this theory in 1915.
Cultural unity was less apparent than its diversity, Africa is home to 2000 distinct languages.