How and why did hitler rise to power?

In the Treaty of Versailles, which followed German defeat in World War I, the victorious powers (the United States, Great Britain, France, and other allied states) impose severe terms on Germany. Germany, under threat of invasion, is forced to sign the treaty. Among other provisions, Germany accepts responsibility for the war and agrees to make huge payments (known as reparations), limit its military to 100,000 troops, and transfer territory to its neighbors. The terms of the treaty lead to widespread political discontent in Germany. Adolf Hitler gains support by promising to overturn them.

Also need to add the fact that hitler was very patriotic and he fought in World War One

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.