English clockmaker Daniel Quare gained the patents for a portable barometer to measure air pressure.
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The Tower Subway in London became the first underground tube railway to open.
Britain took power over the Indian government.
Researchers in South Korea developed a tattoo that monitors a person's health.
Adolf Hitler became Führer of Germany following the death of President Paul von Hindenburg.
Samuel Briggs and his son patented his nail-making machine.