Cherokee Act Indian Removal Act of 1830 Ghost dance Sepoy Indian rebellion of 1857 Raj indirect rule of Britain through -- in India Indian national congress Philippine revolution Spanish American war Aborigines Pan Africanism Sokoto caliphate Xhosa cattle killing movement Zulu kingdom Bantu people led by a talented ruler named Shaka.

What important discovery was made by edmond halley and alexis clairaut, using newton's ideas of mathematics and gravity? they created the scientific method to outline how science should be conducted. they were able to find the orbit of a comet and predict the year of its return. they discovered the three newest planets--uranus, neptune, and pluto. they explained why objects appear to have color.