Editing 2nd millennium BC (section)

==Inventions, discoveries, introductions==
[[File:Solvogn.jpg|220x220px|thumb|The gilded side of the [[Trundholm Sun Chariot|Trundholm sun chariot]].]]
*Chinese [[Oracle bone script]].
*[[Tumble polishing]]: Indians invented polishing method in the 10th century BC.
*[[Diamond cut|Diamond drills]]: in the 12th century BC or 7th century BC, Indians not only innovated use of diamond tipped drills but also invented double diamond tipped drills for bead manufacturing.
*[[Phoenician alphabet]].
* [[Nebra sky disk]], oldest known visual representation of the cosmos.
* Discovery of new [[Ferrous metallurgy|iron smelting and smithing]] techniques.<ref name="Childress2000">{{cite book|author=David Hatcher Childress|title=Technology of the Gods: The Incredible Sciences of the Ancients|url=https://archive.org/details/technologyofgods0000chil|url-access=registration|year=2000|publisher=Adventures Unlimited Press|isbn=978-0-932813-73-2|page=[https://archive.org/details/technologyofgods0000chil/page/77 77]}}</ref><ref name="Waldbaum1978">{{cite book|author=Jane C. Waldbaum|title=From bronze to iron: the transition from the Bronze age to the Iron age in the eastern Mediterranean|url=https://books.google.com/books?id=Qiy1AAAAIAAJ|year=1978|publisher=Paul Astroms Forlag|isbn=978-91-85058-79-2|page=69}} reviewed in {{cite journal |last1=Hood |first1=Sinclair |title=Jane C. Waldbaum: From Bronze to Iron. The Transition from the Bronze Age to the Iron Age in the Eastern Mediterranean. (Studies in Mediterranean Archaeology, LIV.) Pp. 106; 15 text figures. Göteborg: Paul Åström, 1978. Paper, Sw. kr. 150. |journal=The Classical Review |date=27 February 2009 |volume=30 |issue=2 |pages=304 |doi=10.1017/S0009840X00236007|s2cid=161235445 }}</ref>
* [[Spoke]]-wheeled [[chariot]]s.<ref name="Kuznetsov2">{{Cite journal|last=Kuznetsov|first=P.F.|date=2006-09-01|title=The emergence of Bronze Age chariots in eastern Europe|journal=Antiquity|volume=80|issue=309|pages=638–645|doi=10.1017/s0003598x00094096|issn=0003-598X|s2cid=162580424}}</ref>
*Oldest known [[trousers]] from a grave in [[Turpan]], western China.