<imagemap>File:1930s decade montage.png|From left, clockwise: Dorothea Lange's photo of the homeless Florence Thompson show the effects of the Great Depression; Due to the extreme drought conditions, the farms become dry and the Dust Bowl spreads through America; The Canton Operation during the Second Sino-Japanese War; Aviator Amelia Earhart becomes an American flight icon; German dictator Adolf Hitler and the Nazi Party attempted to establish a New Order of absolute Nazi German hegemony in Europe, which culminated in 1939 when Germany invaded Poland, leading to the outbreak of World War II; The Hindenburg explodes over a small New Jerseian airfield, causing 36 deaths and effectively ending commercial airship travel; Mohandas Gandhi walks to the Indian Ocean in the protest Salt March of 1930.|420px|thumb rect 1 1 174 226 Great Depression rect 177 1 375 121 Dust Bowl rect 177 124 375 226 Second Sino-Japanese War rect 378 1 497 226 Amelia Earhart rect 1 229 221 353 Salt March rect 1 357 221 488 Hindenburg disaster rect 225 230 497 488 Nazi Party </imagemap>