Economic equality, women's rights, the idea of self-determination, peace as a desirable state of affairs: all were promoted to varying degrees in the 1920s. With radio transmitting messages, and aeroplanes and/or dirigibles beginning to transport people over vast distances, the connectivity of the globe was vastly, if rather slowly, increased in the 1920s. Before the First World War the automobile had been a relative rarity, particularly outside the United States and Western Europe. By the end of the 1920s, millions owned vehicles of their own and many more were affected by some form of motorised transportation, ranging from public transportation vehicles to tractors. Even the onset of the Great Depression would not turn the world back from the mechanisation and motorisation that began nearly everywhere during the 1920s. The economic crash would cast much asunder, and for the not-inconsiderable period of 1929 -1945, but the underlying trends of the 1920s were positive.