Ibn al-Haytham writes Book of Optics
The Book of Optics is a seven-volume treatise on optics and other fields of study.
Post-classical (500 - 1500 C.E.)
The settlers of Rapa Nui (Easter Island) create hundreds of moia, their famous stone statues
Averaging 13 feet (4 meters) high, with a weight of 13 tons, these enormous stone busts — known as moai — were carved out of tuff (the light, porous rock formed by consolidated volcanic ash) and placed atop ceremonial stone platforms called ahus.
The Peace and Truce of God movement contains violent feuding emerges in Europe
The Peace and Truce of God, by attaching sacred significance to privacy, helped create a space in which communal gatherings could take place and thus encouraged the reconstitution of public space at the village level.
Erik the Red founds the first European settlement on Greenland
Erik Thorvaldsson (c. 950 – c. 1003), known as Erik the Red, was a Norse explorer, described in medieval and Icelandic saga sources as having founded the first settlement in Greenland.
The Piast dynasty comes to power in modern-day Poland
The Piast dynasty was the first historical ruling dynasty of Poland. The first documented Polish monarch was Duke Mieszko I. The Piasts’ royal rule in Poland ended in 1370 with the death of king Casimir III the Great.
The Song Dynasty begins in modern-day China
The Song dynasty was an era of Chinese history that began in 960 and continued until 1279.
The Kingdom of Nri emerges in modern-day Nigeria
Author Onwuejeogwu suggested that Nri influence in Igboland may go back as far as the 9th century, and royal burials have been unearthed dating to at least the 10th century.
The Goryeo Kingdom unites much of the Korean Peninsula
It wasn’t until 1374, however, that the Koryo kingdom managed to unify almost all of what is now North and South Korea under its rule.
The Norse settle Greenland
Norsemen settled the uninhabited southern part of Greenland beginning in the 10th century, having previously settled Iceland to escape persecution from the King of Norway and his central government.
The Moors complete the Alhambra in Granada, Spain
Completed by Yusuf I (1333-1353) and Muhammed V, Sultan of Granada (1353-1391), the Alhambra is a reflection of the culture of the last centuries of the Moorish rule of Al Andalus.