They didn't. They would recycle materials and make new buildings out of old ones or change the purpose of a building to a new one. They would also heavily use wood in building houses and things like that because it was available and was not that difficult to manage unlike stone.
Ussr, China, North Korea, South Vietnam, Cuba
The main reason for british colonization of Singapore was to obtain use of its harbor and ports. Singapore was in a very strategic position for certain trade and shipping routes.
It led to the expansion of Hellenistic culture
Began in 626 BC and ended in 539 BC
