Seventy-five years ago, in 1948, the first commercial microwave oven was introduced by Raytheon. This innovation revolutionized cooking by significantly reducing the time required to heat food. The microwave oven quickly gained popularity in households and restaurants, transforming culinary practices around the world. Its development marked a significant advancement in kitchen technology.
cans were invented 45 years ago!!!
69 years ago
About 400 years ago
Keys, and thus keychains, were invented many hundreds of years ago, probably thousands of years ago. At that time people did not keep day to day records of who did such things and when.
Over 5,000 years ago lamps were invented. The Egyptians had oil lamps.
Dinosaurs died out 65 million years ago. They did not exist 75 - 85 years ago.
1944
Yes
it was invented 3,000 years ago
over 1000 years ago.
75 years ago. Your welcome :)))
no more like thousands of years ago
there were invented 300 years ago
It was invented 109 years ago in 1903.
They began to evolve 600,000 years ago. They died out 27,000 years ago.
75 years ago.
the answer is 1800 years ago.