How Can Archaeologists Tell an Ancient Iron Furnace Was Reused?
Grouped furnace remains, slag, and ore chemistry led researchers to cautiously infer that some ancient bloomery shafts were used more than once.
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The overlooked origins, turning points, and objects that shaped everyday life.
Grouped furnace remains, slag, and ore chemistry led researchers to cautiously infer that some ancient bloomery shafts were used more than once.
The Pony Express crossed more than 1,800 miles in about ten days, yet the service lasted only from April 1860 to October 1861.
The Fort McHenry flag that inspired the U.S. national anthem was originally 30 by 42 feet. Its size was a practical choice, and making it required an unusually large workspace.
Uneven solar heating can make the Eiffel Tower lean slightly, sending its top through a curve about 15 centimeters in diameter.
Avocado DNA suggests that people carried South American avocado ancestry into Nicaragua’s lowlands about 5,000 years ago. Its later mixing with local landraces left a living record of movement and cultivation.
Nintendo’s recorded history begins in Kyoto in 1889 with Japanese hanafuda playing cards. Its first home video game machines did not arrive until 1977, 88 years later.