Final answer:
The events that led to the US involvement in World War I were the assassination of Archduke Franz Ferdinand, the sinking of the Lusitania, and the Zimmermann Telegram.
Step-by-step explanation:
Events that led up to the US becoming involved in World War I:
- Assassination of Archduke Franz Ferdinand: This event on June 28, 1914, triggered a chain reaction of alliances and conflicts that eventually led to the war.
- Sinking of the Lusitania: On May 7, 1915, the British passenger ship Lusitania was sunk by a German submarine, resulting in the deaths of 128 Americans. This event outraged the American public and pushed the US closer to joining the war.
- Zimmermann Telegram: In 1917, intercepted messages from the German Foreign Secretary to Mexico proposed an alliance against the US. This revelation caused public outrage and led to the US declaring war on Germany.
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