BEIJING — From ancient times until today, an enormous population has been a foundational way for China to project its strength. But anxiety about managing so many mouths has always loomed. ''China has a population of 600 million people, and we must never forget this fact,'' Mao Zedong said in 1957, shortly before setting off a calamitous famine.
China's masses, though, are getting to be less massive. And that's a problem.
Birth rate numbers released Monday, the lowest since Mao's Communists established the People's Republic in 1949, are the latest development in a millennia-long struggle in China, where producing children and refreshing the population of the young have been central to the national conversation since the country's earliest days.
China's population stands at 1.404 billion today, down 3 million from the previous year. And the central government's challenge remains much as it has always been: to manage a citizenry that both enhances the country's strength and claims enormous resources.
But various factors — policy, generational change and general evolution of the way people live — have officials concerned that there won't be enough young Chinese people to build the tomorrow they want. This week's numbers illustrate how complicated the problem remains.
The ripples of the one-child policy
It's likely that urban Chinese of the 1980s could barely imagine the situation today — a society where the government is pushing families to have more — up to three — children.
The one-child policy, officially instituted in 1980 four years after Mao's death, was designed to curb a growing population. It restricted Chinese couples to a single offspring and eventually, in many cases, punished them if they didn't comply. The rationale: At that time, under Deng Xiaoping's policy of ''reform and opening-up,'' the country's capital and resources couldn't keep up with the population's demands.