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Oxygen was independently discovered by
Who invented Rabies Vaccine ?
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Before this vaccine invention every infection rabies resulted in death. This vaccine first used on Huan in 1885.
In which year was MIDI introduced?
Electron was invented by
Who invented Dynamite?
Napier invented what ?
In which decade was the AEEE (now the IEEE) founded?
Ernest Rutherford invented what ?
Which of the following inventions were done by Thomas Alva Edison?
Who invented Bicycle?
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