An intelligence quotient (IQ) is a total score derived from several standardized tests designed to assess human intelligence. The abbreviation IQ was coined by the psychologist William Sterne for the German term Intelligenzquotient, his term for a scoring method for intelligence tests at University of Breslau he advocated in a 1912 book.
Answer: Ronald Reagan became the oldest president when he was elected in 1980 at the age of 69.
62. Dwight D. Eisenhower was 62 the first time he was elected U.S. President and 66 the second time. He held the record for oldest sitting President in U.S. history from October 2, 1960, when he surpassed the record that Andrew Jackson held for over 126 years, until May 24, 1981, when Ronald Reagan surpassed his record.