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Rosetta Stone
The Rosetta Stone is a dark grey-pinkish granite stone (often incorrectly identified as basalt) with writing on it in two languages, Egyptian and Greek, using three scripts, Hieroglyphic, Demotic ... > more -
Horseshoe crab
The horseshoe crab (Limulus polyphemus) is an arthropod that is more closely related to spiders than crabs. Horseshoe crabs possess the rare ability to regrow limbs lost. Limulus has been extensively ... > more -
RMS Titanic
RMS Titanic was an Olympic class passenger liner that collided with an iceberg and sank in 1912. The second of a trio of superliners, she and her sisters, RMS Olympic and HMHS Britannic, were ... > more -
Ancient Egypt
Ancient Egypt was a long-lived civilization in north-eastern Africa. It was concentrated along the middle to lower reaches of the Nile River, reaching its greatest extension during the second ... > more -
Ancient Rome
Ancient Rome was a civilization that grew out of the city-state of Rome, founded on the Italian peninsula around 800 BC. During its twelve-century existence, the Roman civilization shifted from a ... > more -
Paleoclimatology
Paleoclimatology is the study of climate change taken on the scale of the entire history of the earth. Glaciers are a widely employed instrument in paleoclimatology. The ice in glaciers has hardened ... > more -
Evolution of cetaceans
The cetaceans (whales, dolphins and porpoises) are descendants of land-living mammals, and remnants of their terrestrial origins can be found in the fact that they must breathe air from the surface; ... > more -
Peking Man
Peking Man (sometimes now called Beijing Man), also called Sinanthropus pekinensis (currently Homo erectus pekinensis), is an example of Homo erectus. The remains were first discovered in 1923-27 ... > more
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