When Were the First Hot-air Balloons Flown?
When Were the First Hot-air Balloons Flown? There was much excitement in France on September 19, 1783. The Montgolfier brothers were going t
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Montgolfier Brothers
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When Were the First Hot-air Balloons Flown? There was much excitement in France on September 19, 1783. The Montgolfier brothers were going t