History of Watchmaking
Clocks with weights, gears and regulators inspired devices, most often with no dial, that struck the important moments of community life.
In 1291, Prince Asulid of Yemen made a remarkable astrolabe.
The Mongols invaded Central Asia and settled in the Russian steppe.
1285. Spectacles were made in Northern Italy.
1291. End of the Crusades in the Holy Land.
1291. Foundation of the Helvetic Confederation by a perpetual pact - the "Eternal League" - between the three forest cantons or Waldstätten: Uri, Schwytz and Unterwald.
Art and Culture
In China, some 400,000 craftsmen were employed in the manufacture of luxurious porcelain, textiles and metalwork for the Emperor.
The dominant style in Central American arts and crafts was Mixteca-Puebla, with its colourful, geometric patterns.