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Inventions

Inventions
Who among the following invented the small pox vaccine?

Robert Hooke
Edward Jenner
Louis Pasteur
Robert Koch

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Inventions
In which decade were the first successful diode and triode vacuum tubes invented?

1800s
1900s
1890s
1880s

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Inventions
In which decade was the Internet first implemented?

1940s
1960s
1980s
1950s

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Inventions
Who invented Automobiles using gasoline?

Leo H Baekeland
Evangelista Torricelli
Kirkpatrick Macmillan
Karl Benz

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Inventions
When were blue jeans invented?

1860s
1850s
1900s
1870s

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Inventions
Who invented Gunpowder?

G. Ferdinand Von Zeppelin
Leo H Baekeland
Sir Frank Whittle
Roger Bacon

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