[["Ronald Reagan was 69 when he became president on January 20, 1981. He turned 70 on February 6th, 1981. ", 74.0], ["Inauguration day for Ronald Reagan's first term of office was January 20, 1981.  At the time, he as 69 years, 349 days of age", 48.0], ["Ronald Reagan was 69 when he became president of the United States. He turned 70 less than three weeks later.", 29.0]]
how old was ronald reagan when he became president of the united states
history,eisenhower