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The estimated expanse of the Achaemenid Empire at its height c. 500 BCE was two million square miles. Most of this territory was conquered by Cyrus the Great, the founder of the Empire, who reigned from 559 to 530 BCE, the fourth king in...

Christianity began as a sect of Judaism in Judea in the 1st century CE and spread to the cities of the Eastern Roman Empire and beyond. In these cities, non-Jews, Gentiles, wanted to join the movement, and these Gentile-Christians soon outnumbered...

The 1905 Law of Separation of Church and State was enacted as the climax of decades of conflict between monarchists and anticlerical Republicans who viewed Christianity as a permanent obstacle to the social development of the Republic. The...

The majority of great Renaissance works of art were produced in large and busy workshops run by a successful master artist and his team of assistants and apprentices. Here, too, more mundane art was produced in larger quantities to meet the...

Trajan's Market is the name given in the early 20th century CE to a complex of buildings in the imperial fora of Rome constructed in 107-110 CE during the reign of Trajan. The complex included a covered market, small shop fronts and a residential...

The human body's system of blood circulation was discovered by the English physician and anatomist William Harvey (1578-1657) in 1628. Harvey determined the relationship between the blood system of arteries and veins and the regular contractions...

Lucius Cornelius Sulla (l. 138 - 78 BCE) enacted his constitutional reforms (81 BCE) as dictator to strengthen the Roman Senate's power. Sulla was born in a very turbulent era of Rome's history, which has often been described as the beginning...

Martin Luther's 95 Theses, credited with sparking the Protestant Reformation in Europe, have become a cultural touchstone since he posted them 31 October 1517, but the little-known 97 Theses, posted only a month earlier, are equally significant...

The sea dogs, as they were disparagingly called by the Spanish authorities, were privateers who, with the consent and sometimes financial support of Elizabeth I of England (r. 1558-1603 CE), attacked and plundered Spanish colonial settlements...

Tacitus (full name, Publius Gaius Cornelius Tacitus, ca. 56 – ca. 117 CE) was a Roman Senator and an important historian of the Roman Empire. In the following passages Tacitus gives an account of the Iceni Queen Boudicca's revolt against...