The Eradication of Smallpox

The Eradication of Smallpox

Transcript On May 8, 1980, officials from the World Health Organization announced that smallpox, the disease which had ravaged humanity across the world for millennia, had been eradicated.  Over the last century before the eradication of smallpox, it is estimated to have killed half a billion people.  Learn more about humanity’s deadliest disease and how …

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The Tunguska Event

The Tunguska Event

Transcript In 1908, in the middle of the Siberian wilderness, near the Tunguska River, an explosion took place which was equivalent in size to the detonation of a 5 megaton nuclear bomb.  But it wasn’t a nuclear bomb. Such things didn’t even exist then. It was a mystery that scientists are still trying to figure …

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The Hagia Sophia

The Hagia Sophia

Transcript The Hagia Sophia in Istanbul, Turkey is one of the largest, oldest, and most significant buildings in the world. It has served as a holy place for three different religions and has been the focal point for two different empires.  Almost, 1,500 years after its construction, it is still making headlines today.  Learn more …

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