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The median age is the index that divides the entire population into two numerically equal age groups, one younger than that age and the other older than that age. It is the only index associated with the age distribution of a population. [1]
The following list of countries by age structure sorts the countries of the world according to the age distribution of their population. The population is divided into three groups: Ages 0 to 14 years: children. Ages 15 to 64 years: working population or adults. Over the age of 65: elderly, senior citizens.
How the age of a Korean person, who was born on June 15, is determined by traditional and official reckoning. Traditional East Asian age reckoning covers a group of related methods for reckoning human ages practiced in the East Asian cultural sphere, where age is the number of calendar years in which a person has been alive; it starts at 1 at birth and increases at each New Year.
China: c. 279 BC Guangzhou (as Panyu) Qin dynasty China: 214 BC [145] [146] Some traditional Chinese histories placed Nanwucheng's founding during the reign of Ji Yan, [147] [148] king of Zhou from 314 to 256 BC. It was said to have consisted of little more than a stockade of bamboo and mud. [149] [148] Hangzhou (as Lin'an, Yuhang, Qiantang ...
Archaeological excavations in eastern China's Shandong province suggest that some of the oldest sections of the Great Wall were built 300 years earlier than previously thought.. Recent digs in the ...
China's fertility rate is lower than Japan's and is aging faster than almost every other country in modern history. [110] More than a third of the world's elderly (65 and older) live in East Asia and the Pacific, and many of the economic concerns raised first in Japan can be projected to the rest of the region. [111] [112]
The history of China–Japan relations spans thousands of years through trade, cultural exchanges, friendships, and conflicts. Japan has deep historical and cultural ties with China; cultural contacts throughout its history have strongly influenced the nation – including its writing system [a] architecture, [b] cuisine, [c] culture, literature, religion, [d] philosophy, and law.
Today, China's and Japan's economies are two of the biggest in the world, respectively the world's second and fourth-largest economies by nominal GDP and the first and fourth-largest economies by GDP PPP. In 2023, China-Japan trade grew to $266.4 billion, a rise of 12.5 percent on 2007, making China and Japan the top two-way trading partners.