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Coca leaves – South American medicine

By |2018-05-30T00:00:28+00:00September 10th, 2017|Science, South America|

History of coca leaves: Coca farming in the Andes Mountains When did coca plants evolve? Like potatoes, tomatoes, and tobacco, coca plants grow wild in the Andes Mountains of South America. They probably evolved around the same time as the other flowering plants, around 120 million years ago, in the Cretaceous Period. (More about the Cretaceous period) Coca plants [...]

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 [...]

Diwali – the Festival of Lights – Hinduism – India

By |2017-07-21T08:36:06+00:00July 21st, 2017|India, Religion|

Flowers and Diwali lamps Diwali is a Sanskrit word originally meaning "a row of lights" - "dipa" is the Sanskrit word for "light". Diwali is an Indian harvest festival celebrating the end of the hard work of harvesting food. People celebrate that now there is plenty of food to last through the winter. Hindus, Buddhists, and Jains all celebrated Diwali [...]

What is limestone? History of Art

By |2018-04-15T11:31:53+00:00May 25th, 2017|Architecture, Art, Geology|

A block of limestone Starting with seashells Limestone is a kind of sedimentary stone that is very common all over the world. This kind of stone forms out of the shells of zillions of little tiny sea snails and creatures like that. These snails and stuff lived in the sea, billions of years ago. When [...]