By 1921 Adolf Hitler became the leader.
Concentration camps were build to isolate people who weren't part of the "Master Race".
Hitler became Chancellor of Germany.
Hitler became the Fuhrer.
Hitler ordered his troops into the Rhinelands.
He was keen on taking the Sudetenland. When Hitler threatened to invade, British and French leaders tried to negotiate with him.
Nazi mob destroyed Jewish homes, businesses, and synagogues. It was named Kristallnacht or Crystal Night because of the broken glasses that littered the streets.
Adolf Hitler broke his promise not to invade Czechoslovakia.
Hitler signed a non-aggression pact with Joseph Stalin, leader of the Soviet Union.
Hitler invaded Poland to take back the land for the Aryans.
Britain and France responded immediately after Germany invaded Poland. Germany ignored the orders to leave Poland on September 3, 1939, Britain and France declared war.