Ronald Wilson Reagan (February 6, 1911 – June 5, 2004) was an American politician and actor who served as the 40th President of the United States from 1981 to 1989. Before his presidency, he was the 33rd Governor of California, from 1967 to 1975, after a career as a Hollywood actor and union leader.

Ronald Wilson Reagan was born in an apartment on the second floor of a commercial building in Tampico, Illinois on February 6, 1911. He was the younger son of Nelle Clyde (née Wilson) and John Edward "Jack" Reagan. Jack was a salesman and storyteller whose grandparents were Irish Catholic immigrants from County Tipperary, while Nelle was of half-English and half-Scottish descent (her mother was born in Surrey). Reagan's older brother, John Neil Reagan (1908–1996), became an advertising executive.

Reagan began as a Hollywood Democrat, and Franklin D. Roosevelt was "a true hero" to him. He moved to the right in the 1950's, became a Republican in 1962, and emerged as a leading conservative spokesman in the Goldwater campaign of 1964.

Despite the continuing debate surrounding his legacy, many conservative and liberal scholars agree that Reagan has been the most influential president since Franklin D. Roosevelt, leaving his imprint on American politics, diplomacy, culture, and economics through his effective communication, dedicated patriotism and pragmatic compromising.

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