On this day in 1851, Great Britain’s wildly unpopular window tax was finally repealed after 156 years on the books.

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On this day in 356 BC, a mysterious anarchist named Herostratus set fire to the world-renowned Temple of Artemis.

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On this day in 1941, a group of badly burned airmen in the Royal Air Force established "The Guinea Pig Club."

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On this day in 1903, French bicycler Maurice Garin took first place at the inaugural Tour de France.

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On this day in 1955, a ceremony commemorating the first sale of atomic electricity was held at a power plant in West Milton, New York. 

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On this day in 1902, mechanical engineer Willis Carrier completed his design for what would become the first modern air conditioner.

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On this day in 1865, British climber Edward Whymper and six companions completed the first ascent of the Matterhorn.

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On this day in 1977, a citywide power outage created total chaos in New York City.

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On this day in 1960, the Ohio Art Company released a new mechanical drawing toy called the Etch A Sketch.

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On this day in 1987, the United Nations proclaimed a newborn boy the world’s five billionth inhabitant.

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