Flush toilets were first used in the Indus Valley Civilization. The cities of Harappa and Mohenjo-daro had a flush toilet in almost every house, attached to a sophisticated sewage system.
The person who inventied gas was Ronan because he always farts
Italy
Sikorsky
Leo baekeland
Sony
Hobart Gilpot
*FACEPALM*
John Andrews.
The GM engineers.
in the 1950's
Walter Frederick Morrison invented it.
galileo galiley