Where was the first balloon flight?
In Annonay, France, but there were no passengers on board. Later that same year the first with people took place in Paris.
Who were the first to fly?
The Montgolfier brothers had lifted off the ground in a tethered balloon. The first in free flight were not people but a sheep, a duck and a cockerel. The first humans in free flight were Jean-François Pilâtre de Rozier, a chemistry and physics teacher, and the Marquis d’Arlandes, a military officer. They flew for 25 minutes from the centre of Paris to the suburbs.
How does it work in a couple of sentences?
Hot air rises above cold air. So if you fill a balloon with air that is hotter than the air outside, it will rise with enough force to lift and carry its basket and passengers.