In this theory, Einstein stated that time and space are relevant to the observer and that the speed of light is the only constant for all frames of reference.
This research was groundbreaking, and eventually led the creation of the atomic bomb.
In this book, John Keynes denounced the Treaty of Versailles, saying that its harsh German reparation clause would bring hardship to all of Europe. This book became very influential, and made the Americans and British feel guilty about their treatment of the Germans.
It was announced that Germany had to pay 132 billion gold marks, but found themselves unable to do so. The people of Germany began passively resisting the French when they occupied the ruhr district.
In this essay, Ludwig Wittgenstein argued that philosophical issues are really pointless, because they cannot be tested by scientific experimentation.
With this plan, Germany received loans from the United States in order to pay back their debts to Britain and France, who in turn would pay their loans to the United States.
This book, by Adolf Hitler, was an autobiography that also laid out his program for Germany.
When the stock market crashed, it led to the great depression throughout all of Europe, causing a worldwide financial crisis.
This public project in the United States that 1/5 of the entire labor force worked for at some point or another, building public projects like buildings or bridges. This was an enormous step towards getting out of the depression in the U.S.
This was a group of Communists, Socialists, and radicals that banded together in France out of fear of fascism.