Editing Plowshare (section)

==History==
[[File:Han Iron Ploughshares (9930225556).jpg|thumb|Iron plowshares, [[Han dynasty]]]]
Triangular-shaped stone plowshares are found at the sites of Chinese [[Majiabang culture]] dated to 3500 BC around [[Lake Tai]]. Plowshares have also been discovered at the nearby [[Liangzhu culture|Liangzhu]] and [[Maqiao]] sites roughly dated to the same period. The [[British people|British]] archaeologist [[David R. Harris (geographer)|David R. Harris]] says this indicates that more intensive cultivation in fixed, probably bunded, fields had developed by this time. According to [[Mu Yongkang]] and [[Song Zhaolin's]] classification and methods of use, the triangular plow assumed many kinds and were the departure from the [[Hemudu]] and [[Luojiajiao]] spade, with the [[Songze]] small plow in mid-process. The post-[[Liangzhu culture|Liangzhu]] plows used [[draft animals]].<ref>Harris (1996), 427–428.</ref><ref>[http://http-server.carleton.ca/~bgordon/Rice/papers/YouXiuling99c.rtf You] {{webarchive|url=https://web.archive.org/web/20110706171456/http://http-server.carleton.ca/~bgordon/Rice/papers/YouXiuling99c.rtf |date=2011-07-06 }} (1999), 1–8.</ref>