7 Jul | Yesterday's Trivia Subject:

World War I -- The U.S. Enters the War

Yesterday's Trivia Challenge Answers

The 1917 Zimmerman Telegram -- the discovery of which hastened America's entry into WWI -- detailed a proposed alliance between Germany and what country?

On December 7, 1917, the United States declared war on what member of the Central Powers alliance, eight months after declaring war on Germany?

The sinking of the RMS Lusitania in 1915 -- which killed nearly 1200 civilians and turned American public opinion against Germany -- was carried out by which German U-Boat?