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Adolf Hitler (1889-1945) was the dictator of Nazi Germany from 1933. He gained power by making popular promises like improving Germany's economy and status in Europe, but when he took these policies too far, he was responsible more...

Tsar Nicholas II (reign 1894-1917) was the last of the Romanov emperors, murdered along with his family during the turmoil of the Russian Revolution in 1917. Insisting on maintaining as far as possible the autocratic...

The ancient Celts were various tribal groups living in parts of western and central Europe in the Late Bronze Age and through the Iron Age (c. 700 BCE to c. 400 CE). Given the name Celts by ancient writers, these tribes and their...

William the Conqueror (c. 1027-1087), also known as William, Duke of Normandy, led the Norman Conquest of England in 1066 when he defeated and killed his rival Harold Godwinson at the Battle of Hastings. Crowned King William...

Peter I of Russia (Peter the Great) was the Tsar of Russia from 1682-1721 and Emperor of Russia from 1721-1725. During his long reign, Peter had absolute power and brought real change to Russia, including building its first navy...

The Treaty of Versailles, signed in June 1919, was an agreement between the victors of the First World War (1914-18) which redivided parts of Europe and imposed reparations, armament limitations, and total blame for the war...

The transatlantic slave trade (also given as the Atlantic slave trade, circa 1492 to 1860) was the practice of enslaving the citizens of African states and transporting them across the Atlantic Ocean to...

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 referred to as 'floating gardens,'...

Anglo-Saxon warfare was characterised by frequent and violent conflicts between petty kings, which ultimately led to the rise of larger kingdoms such as the Kingdom of Mercia, the Kingdom of Northumbria, and the Kingdom of...

Domesday Book was a comprehensive survey and record of all the landowners, property, tenants and serfs of medieval Norman England. It was compiled in 1086-7 under the orders of William the Conqueror (r. 1066-87). The record is unique...