| ON THIS DAY IN AMERICAN HISTORY | |
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On July 12, 1957, Dwight D. Eisenhower becomes the first US president to ride in the latest advance in aviation technology — the helicopter. It is the president himself who suggests using the new machine for short trips to and from the White House. (Photo: President Eisenhower in a helicopter on the White House Lawn, on July 12, 1957.) |
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