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Inventions

Inventions
For what is Charles Babbage (1792-1871) remembered?

Computers
Steam Boating
Radio-Telegraphy
Telescopes

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Inventions
What Karl Benz invented?

Glider
Gasoline powered automobile
Steam turbine
Streetcar

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Inventions
In which decade was the first solid state integrated circuit demonstrated?

1970s
1960s
1980s
1950s

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Inventions
When was the Raggedy Ann doll patented?

1920
1915
1911
1919

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Inventions
What African-American inventor received 5 patents in the field of shoemaking?

Ernest Just
Elijah McCoy
Lewis Latimer
Jan Ernst Matzeliger

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Inventions
When was barb wire patented?

1895
1874
1840
1900

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