Hello buddy,
A bit of history for you : in June 1783 the Montgolfier Brothers made the first public demonstration of a model hot-air balloon and in September they flew a balloon carrying animals to demonstrate that it was possible to survive in the sky.
Some weeks later Pilatre de Rozier, a science teacher, and the Marquis d'Arlandes, an infantry officer, became the first human air travellers when, in a hot-air balloon, they flew for 9 km (5.5 m) over Paris.
GUESS WHAT WAS THEIR "INTERNATIONAL AVIATION LANGUAGE" WAS ????
MF