90 years ago: Cellophane is invented.
80 years ago: The food mixer and the domestic refrigerator were invented.
60 years ago: Teflon was invented.
50 years ago: Velcro was invented.
30 years ago: The computer mouse was invented.
20 years ago: First test-tube baby born in England, Pluto’s moon, Charon, discovered.
5 years ago: The first successful cloning of human embryo
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