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.
Answer: Ronald Reagan became the oldest president when he was elected in 1980 at the age of 69. He survived an assassination attempt. When he finished his second term in office he was 77 years old.