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Inventions

Inventions
When was Milk Tray first introduced?

1915
1942
1923
1934

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Inventions
Who developed the idea of Crop Rotation?

Swede Svenson
Cabbage Carlson
Turnip Townsend
Potato Peterson

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Inventions
When was the Raggedy Ann doll patented?

1919
1920
1915
1911

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Inventions
What Benjamin Franklin invented?

Bifocal spectacles
Barometer
Hygrometer
Radio

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Inventions
Where was the yo-yo invented?

England
United States
France
Philippines

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Inventions
In which year was MIDI introduced?

1973
1977
1987
1983

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