Which President gave the longest inauguration address?

Answer: The ninth U.S. president, William Henry Harrison (1773-1841), gave the longest presidential address (100 minutes and 8,495 words)

The ninth U.S. president, William Henry Harrison (1773-1841), gave the longest presidential address (100 minutes and 8,495 words) in extremely cold and wet conditions. His refusal to wear warm protective clothing saw him catching cold, which eventually turned into pneumonia and led to his death, just a month after the inauguration. He held the shortest presidential term and became the first president to die in office. - MSN

William Henry Harrison Sr. (February 9, 1773 – April 4, 1841) was the ninth President of the United States (1841), an American military officer and politician, and the last president born as a British subject. He was 68 years, 23 days old at the time of his inauguration, the oldest President-elect to take office until Ronald Reagan in 1981. Harrison died 31 days into his term of complications from pneumonia, serving the shortest tenure in United States presidential history. He was the first president to die in office, and his death sparked a brief constitutional crisis, but its resolution left unsettled many questions following the presidential line of succession in regard to the Constitution until the passage of the 25th Amendment in 1967. He was the grandfather of Benjamin Harrison, who served as the 23rd President from 1889 to 1893.

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