25 abr 1902 año - Air Conditioner
Descripción:
In 1902, the first modern electrical air conditioning unit was invented by Willis Carrier in Buffalo, New York. It was a device to blow cold air into a space. It helped people cool off when they were inside of hot places.https://en.wikipedia.org/wiki/Air_conditioning
Añadido al timeline:
fecha:
25 abr 1902 año
Ahora mismo
~ 123 years ago