Which year are we in now? How long ago were these invented?
Photocopier - 1937
Pocket watch - 1510
Refrigerator - 1834
Microwave oven 1946
Adding machine - 1642
Ball point pen - 1888
Pressure cooker - 1679
Thermometer - 1593
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we are in
Playstation 5 = 2020
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We are currently in the year 2020 . Photocopier was invented 83 years ago, Pocketed watch was invented 510 years ago, Refrigerator was invented 186 years ago, Microwave was invented 74 years ago, Adding Machine was invented 378 years ago, Ball point pen was invented 132 years ago, Pressure cooker was invented 341 years ago and Thermometer was invented 427 years ago by now .
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