中国古代的铜钱多为外圆内方,所以人们常戏称钱为“孔方兄”。而且一般认为,“孔方兄”源自“秦半两”。其实不然。 公元前221年秦始皇统一六国后,统一币制。铜钱以“半两”为名,后人称之为“秦半两”。从此,中国的铜钱(以后还有铁钱等)取得了外圆内方的固定形式,一直延续到民国初年。 以前,因为考古发掘的材料不够,不少古钱币收藏者和研究者认为“秦半两”是秦始皇创造的一种新钱,再加上战国时天圆地方的 Ancient Chinese copper coins are mostly inside the outer circle, so people often dub the money for “hole brother.” And generally believed that “Kong Fangxiong” from “Qin half two.” actually not. 221 BC Qin Shi Huang unified the six countries, unified currency system. Copper coins to “half two” in the name of future generations called “Qin half.” Since then, China’s copper coins (iron money, etc. afterwards) have made the fixed form of the inside of the outer circle and continued into the early years of the Republic of China. Previously, because of the lack of material for archaeological excavations, many ancient coin collectors and researchers thought that “Qin and Banquets” were a new kind of money created by the Qin Shi Huang, adding that in the Warring States Period,