The Treaty of Versailles was a peace treaty signed after World War I that imposed harsh conditions on Germany, leading to resentment and contributing to the outbreak of World War II.
The Zimmermann Telegram (1917) Explained
The Zimmermann Telegram was a secret message sent by Germany to Mexico during World War I, proposing a military alliance against the United States.
The Progressive Era Explained
The Progressive Era was a period of social and political reform in the United States from the late 19th century to the early 20th century.