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The twentieth century saw unprecedented advances. Sulfa drugs, antibiotics, and x-ray allowed for the treatment of more and more diseases and injuries. The ability to control the diseases malaria and yellow fever allowed the US to build the Panama Canal. The first successful flight of a heavier than air machine occurred in 1903. Successful rockets were built during WWII that eventually allowed the exploration of space. Vacuum tubes, integrated circuits, and microprocessors allowed for more and more sophisticated manipulation of electronic signals. This resulted in all kinds of previously impossible electronic devices, including calculators, computers, and other devices for manipulating massive amounts of information.

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Q: What were several inventions of the twentieth century?
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