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Albert Leo Stevens (March 9, 1877 – May 8, 1944) was a pioneering balloonist. ==Biography== He was born on March 9, 1873 or 1877 in Cleveland, Ohio of Czech parentage.〔〔〔His birth year has been listed from 1873 through 1877 in various sources. ''The New York Times'' used the final age of 71, which gives 1873 as his birth year. The National Air and Space Museum also uses 1873. 1877 is the year on his tombstone and matches the age given by the Associated Press in their obituary.〕 He had brother Frank Stevens (1875–1958). He began making balloon ascensions in 1889 at age 12, and began manufacturing balloons and dirigibles at the age of 20 in 1893.〔 In 1895 he made his first parachute jump from a church spire in Montreal, Canada. He participated in the Gordon Bennett Balloon Races. He flew one of the very first dirigibles in the United States in 1906.〔 He opened the first private airfield in the nation in 1909. Stevens also played a key role in the development of safety features for parachutes. On July 8, 1911 he ascended in a balloon from the Wanamaker's store in New York City heading toward Philadelphia, but he landed in West Nyack, New York. During World War I he was a US Army instructor.〔 He died on May 8, 1944 at age 67. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Albert Leo Stevens」の詳細全文を読む スポンサード リンク
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