The problem: Answer a question about this article:
The tide-predicting machine invented by Sir William Thomson in 1872 was of great utility to navigation in shallow waters. It used a system of pulleys and wires to automatically calculate predicted tide levels for a set period at a particular location.
Who invented the first tide-predicting machine in 1872?
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The answer: Sir William Thomson


The problem: Answer a question about this article:
Starting in 1940 (18 months before Pearl Harbor), the nation mobilized, giving high priority to air power. American involvement in World War II in 1940–41 was limited to providing war material and financial support to Britain, the Soviet Union, and the Republic of China. The U.S. entered officially on 8 December 1941 following the Japanese attack on Pearl Harbor, Hawaii. Japanese forces soon seized American, Dutch, and British possessions across the Pacific and Southeast Asia, except for Australia, which became a main American forward base along with Hawaii.
When did the US officially enter World War II?
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The answer: 8 December 1941


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Since then, the Bronx has always supported the Democratic Party's nominee for President, starting with a vote of 2-1 for the unsuccessful Al Smith in 1928, followed by four 2-1 votes for the successful Franklin D. Roosevelt. (Both had been Governors of New York, but Republican former Gov. Thomas E. Dewey won only 28% of the Bronx's vote in 1948 against 55% for Pres. Harry Truman, the winning Democrat, and 17% for Henry A. Wallace of the Progressives. It was only 32 years earlier, by contrast, that another Republican former Governor who narrowly lost the Presidency, Charles Evans Hughes, had won 42.6% of the Bronx's 1916 vote against Democratic President Woodrow Wilson's 49.8% and Socialist candidate Allan Benson's 7.3%.)
How much of the Bronx's vote in 1916 did Benson get?
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The answer: 7.3%


The problem: Answer a question about this article:
In 1999, the representatives of Lutheran World Federation and Catholic Church signed the Joint Declaration on the Doctrine of Justification, apparently resolving the conflict over the nature of justification which was at the root of the Protestant Reformation, although Confessional Lutherans reject this statement. This is understandable, since there is no compelling authority within them. On 18 July 2006, delegates to the World Methodist Conference voted unanimously to adopt the Joint Declaration.
Who adopted the Joint Declaration in 2006?
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The answer:
delegates to the World Methodist Conference