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Bolshoy Ice Dome during ice hockey Men's Prelim. Sochi 2014 XXII Olympic Winter Games
7 Ways Hosting the Olympics Impacts a City
number zero, 0 balloon
Is Zero an Even or an Odd Number?
Ahura Mazda - relief of the Zoroastrian god Ahura Mazda at the ancient ruins of Persepolis in Iran. Also known as Ormazd Zoroastrianism,
Which Religion Is the Oldest?
earthquake. Heavily damaged school in the town of Yingxiu after a major earthquake struck China's Sichuan Province on May 12, 2008.
The 6 Deadliest Earthquakes Since 1950
Ancient Mayan Calendar
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Close up of papyrus in a museum.
Before the E-Reader: 7 Ways Our Ancestors Took Their Reading on the Go

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