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EntertainmentUnprecedented discovery: People know how to treat root canal from the 8th century
On June 10, the Mexican National Institute of History and Archeology announced that archaeologists have discovered a set of remains dating back to about 800 AD at the campus of an
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Why are there no male queen bees?
The mystery of the 'doomsday' cinema, built in the desert but not a single person has visited for more than 30 years
Mystery of dozens of giant circular structures at the bottom of Lake Michigan
US ship becomes world's largest artificial reef
Wreckage of mysterious missing bomber found after 80 years
Surprised to know the identity of the Russian missile debris 'hunter'
Australia releases chemical composition data of nearly 1 million stars
NASA shuts down plasma device to save spacecraft 20.5 billion kilometers away
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