Hereford mappa mundi: Did you mean...?

By the end of 1066 CE William the Conqueror had won a decisive victory at the Battle of Hastings, subdued the south-east of England and been crowned King William I in Westminster Abbey but there remained rebellion in the air throughout 1067...

The Norse may have ruled parts of northern Wales in the early 11th century, specifically in Anglesey and Gwynedd, though the degree to which is unclear. Old Norse had relatively little impact on Welsh linguistics, and the Old Norse influenced...

The BCE/CE dating system was first used in the 17th century and has been used since in scholarly publications read by people of all faiths and cultures in an effort to be inclusive. This system is also more accurate in that it makes no claim...

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 I of England...

Cwenthryth of Mercia (also given as Cwoenthryth, 9th century CE) was the daughter of King Coenwulf (r. 796-821 CE). Little is known of her actual life but she later became infamous in the 12th century CE through the legend of St. Kenelm as...

Caernarfon Castle (aka Caernarvon) is located in North Wales and was first built from 1283 CE by Edward I of England (r. 1272-1307 CE) to help, along with several other major castles, control the newly conquered area. As the administrative...

Odo of Bayeux (d. 1097 CE) was the bishop of Bayeux in Normandy and half-brother of William the Conqueror (r. 1066-1087 CE). After the Norman conquest of England in 1066 CE, Odo was given vast Anglo-Saxon estates and made, as the Earl of...

The Holy Roman Empire officially lasted from 962 to 1806. It was one of Europe’s largest medieval and early modern states, but its power base was unstable and continually shifting. The Holy Roman Empire was not a unitary state, but a confederation...

Johannes Kepler (1571-1630) was a German astronomer and mathematician most famous for creating what was up to that point the most accurate model of planetary astronomy with his three laws of planetary motion. Kepler was the first to present...

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...