A carefully curated collection of articles on civilizations, major historical events, and primary sources.
The Battle of Stalingrad (1942–1943)
The Battle of Stalingrad was fought between the Soviet Union and Nazi Germany and its Axis allies from July 1942 to February 1943 during the Second World War. It was one of the largest and bloodiest battles in military history and ended with the destruction and surrender of the German 6th Army. The Soviet victory marked a major turning point on the Eastern Front and ended Germany’s strategic advance into the southern Soviet Union. ...
The Signing of the Magna Carta (1215)
The Magna Carta, meaning “Great Charter,” was issued by King John of England on 15 June 1215 at Runnymede, a meadow beside the River Thames. The charter emerged from a political crisis between the king and a group of rebellious English barons, but its significance eventually extended far beyond the dispute that produced it. Over the centuries, Magna Carta became associated with the principles that the ruler is subject to the law, that government has limits, and that certain rights cannot simply be taken away by royal authority. ...

The First Voyage of Christopher Columbus (1492–1493)
On 12 October 1492, an expedition commanded by Christopher Columbus reached an island in the Caribbean after an extraordinary voyage across the Atlantic Ocean. Columbus believed that he had reached islands lying off the coast of Asia, but he had in fact opened a new and unexpected chapter in the history of relations between Europe and the Americas. The voyage was one of the great navigational achievements of the fifteenth century. It demonstrated that European sailors could cross the open Atlantic with the ships, instruments, knowledge, and seamanship then available to them and return safely to Europe. The expedition was followed by further voyages, permanent settlements, and eventually the creation of an Atlantic world linking Europe, Africa, and the Americas. ...
The Fall of Constantinople (1453)
The Fall of Constantinople occurred on 29 May 1453, when the Ottoman army under Sultan Mehmed II captured Constantinople, the capital of the Byzantine Empire. The conquest ended the Byzantine Empire after more than a thousand years of existence and established the Ottoman Empire as the dominant power in southeastern Europe and the eastern Mediterranean. The event is one of the most significant turning points in medieval history. Background Constantinople had been founded by the Roman Emperor Constantine the Great in 330 CE on the site of the ancient Greek city of Byzantium. ...
The Protestant Reformation (1517–1648)
The Protestant Reformation was a religious and political transformation that began in the early sixteenth century and permanently changed Christianity and European history. It is traditionally associated with Martin Luther’s publication of his Ninety-Five Theses in 1517, although the movement emerged from much older disputes over theology, church authority, political power, and religious practice. What began as a dispute within the Western Christian Church eventually produced permanent divisions in European Christianity. Large parts of northern and central Europe broke with the authority of the Roman Catholic Church, while Catholic institutions responded with their own reforms and renewed efforts to defend Catholic doctrine. ...
The Black Death (1347–1353)
The Black Death was one of the deadliest pandemics in recorded history. Beginning in the mid-fourteenth century, the disease spread across much of Europe, the Middle East, and North Africa, killing tens of millions of people within only a few years. Its effects went far beyond the immediate loss of life. The pandemic disrupted agriculture and trade, transformed labor relations, intensified religious and social tensions, and permanently altered the demographic and economic structure of medieval society. ...

The Publication of Newton's Principia (1687)
On 5 July 1687, the first edition of Isaac Newton’s Philosophiæ Naturalis Principia Mathematica was published in London. Usually known simply as the Principia, the book presented Newton’s laws of motion and his theory of universal gravitation, providing a mathematical framework capable of explaining phenomena ranging from falling objects on Earth to the motion of the Moon and planets. The publication was one of the defining intellectual events of the Scientific Revolution. Newton did not discover the laws of nature in isolation, nor did the Principia suddenly create modern science. It brought together generations of mathematical astronomy, experimental investigation, mechanics, and philosophical debate into a remarkably powerful system. ...
The Battle of Thermopylae (480 BCE)
The Battle of Thermopylae was fought in 480 BCE between an alliance of Greek city-states and the invading Persian Empire under Xerxes I. Background The Battle of Thermopylae took place during the Second Persian Invasion of Greece. The conflict was rooted in the Ionian Revolt (499–493 BCE), when Greek cities in Asia Minor rebelled against Persian rule with limited support from Athens and Eretria. Persian King Darius I vowed revenge against the mainland Greeks and launched an invasion that ended in defeat at the Battle of Marathon in 490 BCE. ...
The Battle of Agincourt (1415)
The Battle of Agincourt was fought on 25 October 1415 between the English army of King Henry V and a much larger French army during the Hundred Years’ War. The English victory became one of the most famous battlefield triumphs of medieval Europe and established Henry V as one of England’s most celebrated warrior kings. Background The Battle of Agincourt took place during the Hundred Years’ War, a prolonged series of conflicts between England and France that began in the fourteenth century. ...
The Battle of Midway (1942)
The Battle of Midway was fought from 4 to 7 June 1942 between the United States and Imperial Japan during the Second World War. The battle was one of the most important naval engagements of the Pacific War and resulted in the destruction of four Japanese aircraft carriers. The American victory halted Japan’s strategic expansion in the Pacific and shifted the initiative toward the United States. Background The Battle of Midway took place six months after the Japanese attack on Pearl Harbor on 7 December 1941. ...