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Hanging Gardens of Babylon – West Asian science

By |2018-04-07T17:05:00+00:00September 15th, 2017|Science, West Asia|

Assurbanipal in the garden (see his enemy's head hanging in the tree?) Nobody knows for sure when or where the Hanging Gardens of Babylon were built. But they were already famous as one of the Seven Wonders of the World in the Hellenistic period, about 200 BC. The most likely explanation is that the gardens [...]

History of glass – Who invented glass?

By |2018-05-25T17:36:54+00:00September 5th, 2017|Ancient, Science, West Asia|

Obsidian: naturally occurring glass History of glass: Glass beads from Old Kingdom Egypt, about 2700-2500 BC People have been using naturally occurring glass since the Stone Age, when they wanted an especially sharp edge on a tool or an arrowhead. Where does obsidian come from? Obsidian is a natural glass which forms when sand [...]

Who invented paper? Ancient China and the history of paper

By |2018-11-30T09:37:38+00:00July 27th, 2017|China, Literature, Science|

History of paper: Early Chinese paper Paper invented in China Since the invention of writing, people had been trying to come up with something easier to write on than papyrus or parchment, and also something easier and cheaper to make. Read more about papyrus What is parchment made of? More ancient China articles But it took 3000 [...]

Why was the cotton gin important? American History

By |2017-06-08T09:05:10+00:00June 8th, 2017|Clothing, North America|

Model of Indian cotton gin (1100s AD) When people in India first started to grow cotton, they picked the seeds out by hand before they spun the cotton into thread. By 500 BC, women in India used a rolling pin to get the seeds out of cotton. There's a picture of one in the [...]