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Skeleton fossil record of ancient reptiles in stone.

Do Fossil Fuels Really Come from Fossils?

Discover

US Marines firing at Fallujah, Iraq, during the Second Battle of Fallujah in November 2004. Operation Iraqi Freedom, Iraq War.

Timeline of the 2000s

Ethel Rosenberg arrested in August 1950. Photograph dated Aug. 8, 1950. American civilians executed for espionage. Spies, communists, Julius Rosenberg

Spies Like Us: 10 Famous Names in the Espionage Game

Gutzon Borglum. Presidents. Sculpture. National park. George Washington. Thomas Jefferson. Theodore Roosevelt. Abraham Lincoln. Mount Rushmore National Memorial, South Dakota.

9 Memorials and Monuments in the United States

Drinking water is poured into a glass.

Water Fluoridation: Just the Facts

Happy, smiling, flying pig

7 Everyday English Idioms and Where They Come From

Figure 13: A Maxim machine gun, belt-fed and water-cooled, operated by German infantrymen, World War I.

7 Deadliest Weapons in History

Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society

12 Novels Considered the “Greatest Book Ever Written”

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Also Known As	charbon brillant • Glanzkohle

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coal coal classification fusain durain clarain coal mining coal utilization bituminous coal subbituminous coal anthracite lignite sapropelic coal