What was invented by Thomas Alva Edison?
What was invented by Alfred Nobel?
What was discovered by Alexander Fleming?
What was invented by brothers Wright?
What was discovered by Guglielmo Marconi?
What was NOT invented by Daniel Gabriel Fahrenheit?
What explored Marie Curie-Sklodowska?
Who formulated the law of universal gravitation?
Who invented röntgen (X-rays)?
In which century invented Johannes Guttenberg printing press?
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