when was the first piece of clothing invented
Clothing There is no easy way to determine when clothing was first developed, but some information has been inferred by studying lice which estimates put the introduction of clothing at roughly 42,000â€“72,000 years ago.[1][2][3][4] [5]
Air conditioning In 1902, the first modern electrical air conditioning unit was invented by Willis Carrier in Buffalo, New York. After graduating from Cornell University, Carrier found a job at the Buffalo Forge Company. While there, he began experimenting with air conditioning as a way to solve an application problem for the Sackett-Wilhelms Lithographing and Publishing Company in Brooklyn, New York. The first air conditioner, designed and built in Buffalo by Carrier, began working on 17 July 1902.[citation needed]