The start of World War Two.
What were the main events in the previous century that shaped the way we live today?
We've looked back over the past 100 years and compiled a list of events, inventions and social changes that may have affected the present and possibly the future.
1930
In South Africa, white women can now vote, but blacks are still excluded under the regime that would soon be called apartheid.
1931
General Motors's Frigidaire replaces ammonia with Freon 12 refrigerant gas, making refrigerators safe for households around the world.
1932
Mohandas Gandhi begins a civil disobedience 'fast unto death' to protest British treatment of India's untouchable caste. After just 6 days, he wins concessions.
1933
Hitler has proclaimed the Third Reich, opening the first concentration camp at Dachau and eliminating all political parties other than National Socialism.
1934
Begun invents the magnetic tape recorder.
1935
Hitler begins to re-arm Germany, creating the Luftwaffe in violation of the Versailles Treaty.
Elvis Presley is born, the second of identical twins, but his brother is stillborn.
1936
Joseph Stalin begins a 'great purge' to liquidate his enemies. By 1939, over 8 million are dead and 10 million imprisoned.
1937
Japan invades China. Italy withdraws from the League of Nations and joins a Germany-Japan pact.
1938
In the radio broadcast War of the Worlds, Orson Wells panics Americans who believe that Martians are invading Earth.
1939
Germany invades Poland. France and Great Britain declare war. Spain, exhausted from civil war, remains neutral.
Albert Einstein writes a letter to President Roosevelt regarding the possibility of using uranium to initiate a nuclear chain reaction, the process behind the atomic bomb.