Alloy making 2500 BC Czechoslovakia copper and tin = bronze.
Regional variation in India
The Neolithic trend of using polished stone tools continued in this period also.
Microlithic tools on silicious material were very common.
Copper and its alloys were used in making axes, chisels, knives, fishhooks, pins, rods, etc.
Stone grinders, mullers and hammers were used for processing food
Pottery used to be decorated with linear, curvilinear and intricate designs in black pigment.
Floral, vegetal, anima, bird and fish motifs were also used in the decorations.
Adults buried in extended position.
Female figures from newasa and inamgaon.
West India
Distinct urban growth 2700 and 1600 BC
Mehergarh. Pre to post harappans
Rest India
Very rated village structure with copper bronze iron from 2300 and 1100 BC.
Bihar Orissa Bengal. copper age villages with tiny celts, microlith and wheel made red and black pottery with copper.
Chirand bihar. Pandu rajar dhipi WBengal.
South India. Tributaries of Krishna river. Deccan chalcolithic. Hill dwellers with peripheral cultivation of ragi and millets. Bury in East West. Urns at home.