The 12th century is the period from 1101 to 1200 in accordance with the Julian calendar.In the history of European culture, this period is considered part of the High Middle Ages and is sometimes called the Age of the Cistercians.The Golden Age of Islam experienced a significant development, particularly in Islamic Spain.. In Song dynasty China an invasion by Jurchens …

The 31st century BC was a century that lasted from the year 3100 BC to 3001 BC. Events. Spiral design altar block from the Tarxien Temples of Malta, uncovered by Sir Themistocles Zammit. Front and Back Sides of Narmer Palette, this facsimile on display at the Royal Ontario Museum, in Toronto, Ontario, Canada.