The Chinese of the Song Dynasty invent dry docks
A dry dock is a narrow basin or vessel that can be flooded to allow a load to be floated in, then drained to allow that load to come to rest on a dry platform.
A dry dock is a narrow basin or vessel that can be flooded to allow a load to be floated in, then drained to allow that load to come to rest on a dry platform.
Economic historian Robert Hartwell writes that the Chinese of the Song Dynasty innovated a “partial decarbonization” method of repeated forging of cast iron under a cold blast.
The Inuit are a group of culturally similar indigenous peoples inhabiting Inuit Nunangat, the regions of Greenland, Canada, and Alaska
The world’s first movable type printing press technology for printing paper books was made of porcelain materials and was invented around C.E. 1040 in China during the Northern Song Dynasty by the inventor Bi Sheng.
At its greatest extent, the Seljuk Empire controlled a vast area stretching from western Anatolia and the Levant to the Hindu Kush in the east, and from Central Asia to the Persian Gulf in the south.
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.
In China, pyrotechnicians were respected for their knowledge of complex techniques in mounting firework displays. Chinese people originally believed that the fireworks could expel evil spirits and bring about luck and happiness.
Experimenting with life-lengthening elixirs around C.E. 850, Chinese alchemists instead discovered gunpowder.
The Marajoara culture was a pre-Columbian era society that flourished at the mouth of the Amazon River likely between 800 C.E. and 1400 C.E.
The sweat ceremony is intended as a spiritual reunion with the creator and a respectful connection to the earth itself as much as it is meant for purging toxins out of the physical body.