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2,988 definitions
1,761 articles
19,837 illustrations
2,642 videos
415 3D images
16,209 translations
48 languages
1,336 contributors
15,563 keywords
59,791 registered users
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Ancient Period

Templo Mayor
Definition

Templo Mayor - The Aztecs' Greatest Temple

The Templo Mayor or Great Temple (called Hueteocalli by the Aztecs) dominated the central sacred precinct of the Aztec capital Tenochtitlan. Topped by twin temples dedicated...
Plagues in History
Collection

Plagues in History

Plagues have swept through humanity ever since communities have gathered together in concentrated groups. In this collection of resources, we look at just some of the pandemics that raged...
Chinampas
Definition

Chinampas - Mexico's Human-Made Agricultural Islands

Chinampas are human-made islands built in shallow lakebeds that have fed the people of Mesoamerica and shaped local ecosystems for over a thousand years. Sometimes...
Asherah
Definition

Asherah

Asherah is a Hebrew word for what was either a goddess or a cultic object or perhaps both. Although many see evidence for Asherah being an individual goddess known to the Israelites, some scholars...
Book of Genesis
Definition

Book of Genesis

The Book of Genesis is the first book of the Jewish scriptures and the Old Testament of the Christian Bible. Genesis takes its name from the opening line in Hebrew – beresit, ("in the beginning"...
Vishnu
Definition

Vishnu

Vishnu is one of the most important gods in the Hindu pantheon. He is considered a member of the holy trinity (trimurti) of Hinduism with Brahma and Shiva. Vishnu is the Preserver and guardian of...
Cahokia
Definition

Cahokia

Cahokia is a modern-day historical park in Collinsville, Illinois, enclosing the site of the largest pre-Columbian city on the continent of North America. The original name of this city has been...
Tyrian Purple
Definition

Tyrian Purple - The Super-Expensive Dye of Antiquity

Tyrian purple (aka Royal purple or Imperial purple) is a dye extracted from the murex shellfish which was first produced by the Phoenician city of Tyre in the...
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Medieval Period

Batu Khan
Definition

Batu Khan

Batu Khan (l. 1205-1255 CE) was a grandson of Genghis Khan and the founder of the Golden Horde. Batu was a skilled Mongol military commander and won battles from China to Persia, although his...
Byzantine Emperor
Definition

Byzantine Emperor

The Byzantine Emperor ruled as an absolute monarch in an institution which lasted from the 4th to 15th century CE. Aided by ministers, high-ranking nobility, and key church figures, the...
Henry V of England
Definition

Henry V of England

Henry V of England ruled as king from 1413 to 1422. Succeeding his father Henry IV of England (r. 1399-1413), Prince Henry established himself as a fine military leader in battles against...
Bhutan: Land of the Thunder Dragon
Article

Bhutan: Land of the Thunder Dragon

It is a breathtaking flight with dramatic sweeps over fertile valleys and blue pine forests. You fly past Mt. Everest, Mt. Kanchenjunga and Mt. Gangkhar Puensum, which is...
Siege Warfare in Medieval Europe
Article

Siege Warfare in Medieval Europe

Siege tactics were a crucial part of medieval warfare, especially from the 11th century CE when castles became more widespread in Europe and sieges outnumbered pitched battles...
Freyr
Definition

Freyr

Freyr (Old Norse for 'Lord', sometimes anglicised as Frey) is the main fertility god in Norse mythology, his connection with harvests, sun and rain, virility, weddings, and his rule over wealth...
Jianwen Emperor
Definition

Jianwen Emperor

The Jianwen Emperor (r. 1398-1402 CE) was the second ruler of the Chinese Ming dynasty (1368-1644 CE). Following a civil war and Jianwen's mysterious disappearance, his uncle took over the...
Aethelred I of Wessex
Definition

Aethelred I of Wessex - The Forgotten Victor of the Battle of Ashdown

Aethelred I ruled the Kingdom of Wessex (southern England) from 865 to 871 and led the English resistance to the Viking invasions of Britain. He...
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Early Modern Period

Weapons in the American Revolution
Article

Weapons in the American Revolution

The American Revolutionary War (1775-1783) was a long and bitter conflict fought between Great Britain and its thirteen North American colonies over the Americans' liberties...
Stamp Act
Definition

Stamp Act

The Stamp Act of 1765 was the first direct tax imposed on the 13 American colonies by the Parliament of Great Britain. It required the colonists to pay a tax on all printed materials including...
Battle of Plassey
Article

Battle of Plassey

The Battle of Plassey on 23 June 1757 saw Robert Clive's East India Company army defeat a larger force of the Nawab of Bengal. Victory brought the Company new wealth and marked the beginning...
Napoleon Bonaparte During the Early French Revolution (1789-1794)
Article

Napoleon Bonaparte During the Early French Revolution (1789-1794)

Of all the careers that soared to meteoric heights during the chaotic decade of the French Revolution (1789-1799), none was more spectacular nor impactful...
Whiskey Rebellion
Definition

Whiskey Rebellion

The Whiskey Rebellion was a violent uprising that occurred in western Pennsylvania in 1794, in opposition to an excise tax on liquor. After anti-tax protestors assaulted federal tax collectors...
Christian Antisemitism in the Middle Ages & during the Reformation
Article

Christian Antisemitism in the Middle Ages & during the Reformation

Antisemitism is a modern term that describes prejudice and hostility to Jews and Judaism. The origins of Christian antisemitism in the gospels are...
A Gallery of Ancient Japanese Pagodas
Image Gallery

A Gallery of Ancient Japanese Pagodas

In this gallery, we look at some of the most famous pagodas in Japan, many of which are classified as National Treasures. Pagodas are tall, multi-storied structures which...
Gallery of the Chateaux of the Loire Valley
Image Gallery

Gallery of the Chateaux of the Loire Valley

This gallery gives an overview of 25 stunning châteaux in the Loire Valley of France, some very well known and others that deserve to be discovered. Some of these châteaux...
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Modern Period

James Madison
Definition

James Madison

James Madison (1751-1836) was a statesman, diplomat, and a Founding Father of the United States, who served as the fourth US president from 1809 to 1817. He played an important role in the...
30 of Japan's Finest Castles
Image Gallery

30 of Japan's Finest Castles

This image gallery includes 30 of the finest castles in Japan, based on their level of preservation as well as their architectural and cultural heritage. It is by no means an exhaustive...
Coyote Tales of the Apache
Article

Coyote Tales of the Apache

Coyote is easily the most famous trickster figure in the lore of the Native peoples of North America, and the Coyote tales of the Apache are among the best-known. As a trickster...
Discovery of Penicillin
Article

Discovery of Penicillin

The age of antibiotics began in September 1928, with the discovery of penicillin by Alexander Fleming (1881-1955), then a professor of bacteriology at St. Mary's Hospital in London...
Germ Theory
Definition

Germ Theory

The germ theory, which emerged in the late 19th century, demonstrated that microscopic germs caused most human infectious diseases. The germs involved included bacteria, viruses, fungi, protozoa...
Portuguese Angola
Definition

Portuguese Angola

Portuguese Angola in southwest Africa was the first European colony on that continent. While settlement from 1571 proved problematic in the interior, the Portuguese did obtain a large number...
George IV of Great Britain
Definition

George IV of Great Britain

George IV of Great Britain (r. 1820-1830) was the fourth of the Hanoverian monarchs. He first reigned as Prince Regent from 1811 for his mad father George III of Great Britain (r...
Marbury v. Madison
Definition

Marbury v. Madison

Marbury v. Madison (1803) was a landmark decision of the United States Supreme Court that established the principle of judicial review. In the decision, written by Chief Justice John Marshall...
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Prehistoric Period

Newgrange
Definition

Newgrange

Newgrange is a Neolithic monument located in the region of Bru na Boinne, County Meath, Ireland. The name is fairly modern and comes from the 'newer' grange (farm) of the monks of Mellifont Abbey...
Poulnabrone
Definition

Poulnabrone

Poulnabrone is a portal tomb in the region known as the Burren, County Clare, Ireland and the oldest dated megalithic monument in the land. The name means "Hole of the Quern Stones", but the...
Europe
Definition

Europe

Europe is a continent forming the westernmost part of the land mass of Eurasia and comprised of 49 sovereign states. Its name may come from the Greek myth of Europa, but human habitation of the...
Ҫatalhöyük
Definition

Ҫatalhöyük

Ҫatalhöyük is one of the largest Neolithic settlements ever discovered. Built more than 9000 years ago in modern Konya Plain, central Turkey, it is known in archaeology as a proto-city, a link...
Paleolithic
Definition

Paleolithic

The Palaeolithic ('Old Stone Age') makes up the earliest chunk of the Stone Age – the large swathe of time during which hominins used stone to make tools – and ranges from the first known tool...
Homo Heidelbergensis
Definition

Homo Heidelbergensis

Homo heidelbergensis is an extinct species of human that is identified in both Africa and western Eurasia from roughly 700,000 years ago onwards until around 200,000 years ago – fitting...
Maeshowe
Definition

Maeshowe - The Ancient Meadow Mound of Orkney

Maeshowe (pronounced `maze-ow' or `maze-oo') is a large Neolithic chambered cairn, dating from between 3000-2800 BCE, in the Stenness parish of Orkney, Scotland. According...
Denisovan
Definition

Denisovan

The Denisovans are an extinct group of fossil humans who, along with their sister group the Neanderthals, also share an ancestor with Homo sapiens. Thus far, they are known only from Denisova...
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