Pope Urban II: Did you mean...?

Antisemitism is a modern term that describes prejudice and hostility to Jews and Judaism. The origins of Christian antisemitism in the gospels are based on the story of a 1st-century itinerant Jewish preacher, Jesus of Nazareth, in the Roman...

The Doctrine of Discovery is a policy enacted initially by the 15th-century Catholic Church proclaiming the right of Christian nations to take possession of the lands of non-Christians in the interest of saving their souls. Non-Christians...

The Magna Carta or 'Great Charter' was an agreement imposed on King John of England (r. 1199-1216) on 15 June 1215 by rebellious barons in order to limit his power and prevent arbitrary royal acts like land confiscation and unreasonable taxes...

The Crusades were a series of military campaigns organised by popes and Christian western powers to take Jerusalem and the Holy Land back from Muslim control and then defend those gains. There were eight major official crusades between 1095...

The Sixth Crusade (1228-1229 CE), which for many historians was merely the delayed final chapter of the unsuccessful Fifth Crusade (1217-1221 CE), finally saw the Holy Roman Emperor Frederick II (r. 1220-1250 CE) arrive with his army in the...

The Hussite Wars (1419 to c. 1434) were a series of conflicts fought in Bohemia (modern-day Czech Republic) between followers of the reformer Jan Hus and Catholic loyalists toward the end of the Bohemian Reformation (c. 1380 to c. 1436...

Johann Eck (l. 1486-1543) was a Catholic theologian and writer best known for his disputations with Martin Luther (l. 1483-1546) beginning in 1517 and continuing until his death in 1543. Eck maintained the position that, if anyone could determine...

The Reconquista (Reconquest) or Iberian Crusades were military campaigns largely conducted between the 11th and 13th century CE to liberate southern Portuguese and Spanish territories, then known as al-Andalus, from the Muslim Moors who had...

Constantinople at first had much in common with the temporary capitals of the 2nd and 3rd century CE and the tetrarchic capitals. It was an existing city of medium size, well located on the road network, and unlike most of them, it was also...

In 1204 CE the unthinkable happened and Constantinople, after nine centuries of withstanding all comers, was brutally sacked. Even more startling was the fact that the perpetrators were not any of the traditional enemies of the Byzantine...