Well, it's around 750, a great number of the changes that moved the Greeks away from the Dark Age kind of society to the full scale polis begin.

在大约公元前七百五十年,发生了许多变化,这些变化将希腊从黑暗时代的社会形态中拽出,进而开始了全面的城邦社会

耶鲁公开课 - 古希腊历史简介课程节选

it was reversible, so you can give people money and take it away, and you could actually scale the amount of money, so it makes a very handy experimental tool.

这个过程是可逆的，这样你可以给人钱，然后拿走，而且你还可以积攒钱，这就让钱成为了一种非常有用的试验工具。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选