The Black Stone Ciph

It feels like the 1940s or 50s, or perhaps the 1950s or 60s. Technology wasn't very advanced, but it was also a period of technological explosion.,Wealthy people don't mind these small expenses. They even install a boiler in their own houses to provide heating systems and buy a washing machine to do laundry anytime, anywhere.,For the poor, these are unnecessary and unaffordable expenses, so their lives must become more regular.。