civilisation

The Indus Valley civilisation developed sophisticated urban planning nearly five thousand years ago.印度河流域文明在近五千年前就发展出了精细的城市规划。

The collapse of Bronze Age civilisations around 1200 BCE remains a subject of intense scholarly debate.公元前1200年前后青铜时代文明的崩溃仍然是学者们激烈争论的主题。