Monday, January 16, 2012

Copper Bronze Age

The earliest copper objects were shaped by hammering copper and later on objects were made by smelting copper ore minerals like Chalcopyrites and bornite.By 4000 BC copper metallurgy was widespread. Places in Andes mountains where copper ores are abundant have been known for copper metallurgy for thousands of years.

In the fourth millennium BC it was discovered by Smiths in Near East and South East Asia that alloying of copper with tin,arsenic or lead produced an alloy metal more suitable for making useful articles.

Metallurgical technology progresses in third millennium BC perhaps partly due ti the evolution of the art of writing.Since the demand for bronze increased it gave boost in trading activity.

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