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Fertile Crescent
Definitionby Joshua J. Mark

Fertile Crescent

The Fertile Crescent, often called the "Cradle of Civilization", is the region in the Middle East which curves, like a quarter-moon shape, from the Persian Gulf, through modern-day southern Iraq, Syria, Lebanon, Jordan, Israel and northern...
Sejong the Great
Definitionby Ben Griffis

Sejong the Great

King Sejong the Great (15 May 1397 - 8 April 1450 CE) ruled Korea from 1418 to 1450 CE as the fourth king of the Joseon Dynasty (also spelled Choson). One of only two Korean kings called 'the Great' today, Sejong had a major impact on Korea...
Eratosthenes
Definitionby Cristian Violatti

Eratosthenes

Eratosthenes (276-195 BCE) was an ancient Greek Alexandrian scholar, native of Cyrene, who attained distinction in many fields including philosophy, mathematics, astronomy and history. However, it was in geography where he proved to be more...
Lego Antikythera Mechanism
Videoby nature video

Lego Antikythera Mechanism

The Antikythera Mechanism: http://bit.ly/fm4oFK is the oldest known scientific computer, built in Greece at around 100 BCE. Lost for 2000 years, it was recovered from a shipwreck in 1901. But not until a century later was its purpose understood...
Gynaecological Instrument
Imageby Mark Cartwright

Gynaecological Instrument

A bronze gynaecological instrument, Roman, 1st century CE. (Archaeological Museum of Como, Italy)
Pont Du Gard Aqueduct
Imageby Mark Cartwright

Pont Du Gard Aqueduct

The Pont Du Gard Roman aqueduct, Southern France, 1st century CE
Intihuatana Stone, Machu Picchu
Imageby Flickr User: David

Intihuatana Stone, Machu Picchu

The Intihuatana Stone or 'Hitching Post of the Sun' at Machu Picchu in the High Andes. The stone was used by Inca priests for astronomical observations, especially of the sun. In ceremonies during the solstices the priests symbollically tied...
Antikythera Mechanism
Imageby Mark Cartwright

Antikythera Mechanism

The Antikythera Mechanism (c. 50 BCE), a device used to calculate astronomical positions. The device was found in a shipwreck off the coast of the island of Antikythera. (National Archaeological Museum, Athens).
Syracusia
Imageby Unknown Artist

Syracusia

An artist's rendition of how the ancient Greek transport ship the Syracusia may have looked. It is reported to have been one of the largest ships built in antiquity.
Tablet Observation of Halley's Comet
Imageby Osama Shukir Muhammed Amin

Tablet Observation of Halley's Comet

Babylonian astronomical diaries recorded daily observation of the moon and planets from around the 7th century BCE onward. The diaries for 164-163 BCE contain observations of Halley's comet at its 1st and last visibility. This observation...
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