Thirty years: Did you mean...?

Maria Theresa (1717-1780) was the ruler of the Habsburg Monarchy, a sprawling empire that included Austria, Hungary, Bohemia, and other territories spread out across Italy, the Netherlands, and Central Europe. Though her ascension to the...

Neanderthals are an extinct group of fossil humans that appeared in Western Eurasia in the mid-Middle Pleistocene and shared the stage with the first modern humans arriving in Europe from around 45,000 years ago, before disappearing from...

Civil wars have repeatedly emerged as some of the most destructive conflicts in human history because they combine military violence with political collapse, social fragmentation, famine, disease, and ideological struggle within already interconnected...

Agriculture arose independently at several locations across the world, beginning about 12,000 years ago. The first crops and livestock were domesticated in six rather diffuse areas including the Near East, China, Southeast Asia, and Africa...

The term “Athenian Calendar” (also called the “Attic Calendar”) has become somewhat of a misnomer, since Ancient Athenians never really used just one method to reckon the passage of time. Athenians, especially from the 3rd Century BCE forward...

The Dade Massacre (also given as the Dade Battle, 28 December 1835) was the opening engagement of the Second Seminole War (1835-1842) between Euro-American forces and those of the Seminole, Black Seminole, and runaway slaves who had found...

An ice age is a period in which the earth's climate is colder than normal, with ice sheets capping the poles and glaciers dominating higher altitudes. Within an ice age, there are varying pulses of colder and warmer climatic conditions, known...

Judas Iscariot was one of the original disciples of Jesus of Nazareth (d. c. 30 CE), one of the twelve apostles. For handing Jesus over to the authorities, as described in the gospels, he has become the epitome of the act of betrayal in the...

Edward III of England reigned as king from 1327 to 1377. Succeeding his father Edward II of England (r. 1307-1327) following his enforced abdication and then murder, Edward III would take revenge on his father's enemies, who included the...

Frederick II of Prussia (1712-1786), better known as Frederick the Great, was one of the most consequential rulers of 18th-century Europe. A scion of the House of Hohenzollern, he came to power in 1740 at the age of 28 and, over the course...