Three kingdoms: Did you mean...?

The Three Fates, oil on canvas by Paul Thumann, 19th century.

Illustration from Christine de Pizan's The Book of the Three Virtues (1405 CE). Boston Public Library.

A marble relief plaque showing the Three Graces. Copy of a c. 470 BCE original by Sokrates the Boetian sculptor. (Archaeological Museum, Piraeus)

Mosaic of the Three Graces from Caesarea in Mauretania (modern-day Cherchell in Algeria). Dated to the 4th century CE. Archaeological Museum of Cherchell, Algeria.

The Antikythera Mechanism (also known as the Antikythera Device), dated to the late 2nd century/early 1st century BCE (roughly 205-60 BCE) is understood as the world's first analogue computer. National Archaeological Museum, Athens.

Relief from the Sebasteion of Aphrodisias depicting the Three Graces in a typical Hellenistic style. The Sebasteion is a monumental complex dedicated to Aphrodite and the Julio-Claudian emperors in the 1st century CE. Aphrodisias Museum...

Flann Sinna (r. 879-916 CE) was a High King of Ireland from the Kingdom of Mide (Meath) and a member of the Clann Cholmain, a branch of the Southern Ui Neill dynasty. His name is pronounced “Flahn Shinna” and means “Flann of the Shannon”...

The Battle of Poitiers was fought on 19 September 1356 in Nouaillé, near the city of Poitiers in Aquitaine, western France. An army of English, Welsh, Breton and Gascon troops, many of them veterans of Crécy, led by Edward, the Black Prince...

The Third Estate of France carrying the other two orders (Clergy and Nobility) on its back, engraving with the initials M. P., Paris, 1789. Bibliothèque nationale de France, Paris.

Woodcutting of a plague-stricken man lying in bed, attended by three physicians. From the Pestbuch, a 16th Century CE medical treatise by Hieronymous Brunschwig (c. 1450-1512 CE). (Courtesy of the Historical Medical Library of The College...