A late 19th-century illustration of Gay-Lussac and Biot ascending to 4,000 m (13,000 ft) in a hot-air balloon in 1804.

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Size: 3000px × 4389px
Photo credit: © Carlo Bollo / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1800, 1800s, 19th, air, aviation, aviator, aviators, balloon, century, history, hot, timeline