How long did it take christopher columbus to sail to the new world?

Why did the american indian movement occupy wounded knee? to protest federal policies regarding broken treaties to protest the policies of the bureau of indian affairs to protest the policies that lead to continued discrimination to protest the policies that lead to continued poverty

How did francis bacon challenge the way of thinking about science

Although a number of things brought about world war one there was one even that push to europe over the edge. what was that event?