- Jun 2014
- New Delhi, India
You can hallucinate as much as you want. But division of society happened in a stable settled society - Vedic I mean.
"The earliest recorded metal employed by humans appears to be gold, which can be found free or "native". Small amounts of natural gold have been found in Spanish caves used during the late Paleolithic period, c. 40,000 BCE. Silver, copper, tin and meteoric iron can also be found in native form, allowing a limited amount of metalworking in early cultures. Egyptian weapons made from meteoric iron in about 3000 BCE were highly prized as "daggers from heaven".
Certain metals, notably tin, lead and (at a higher temperature) copper, can be recovered from their ores by simply heating the rocks in a fire or blast furnace, a process known as smelting. The first evidence of this extractive metallurgy, dating from the 5th and 6th millennia BC, has been found at archaeological sites in Majdanpek, Yarmovac, and Plocnik, in present-day Serbia. To date, the earliest evidence of copper smelting is found at the Belovode site near Plocnik. This site produced a copper axe from 5500 BCE, belonging to the Vinča culture."
Metallurgy - Wikipedia
Dont read just Yaska and Sayana, read something else too.