Photo: Mark Pegrum, Pudong, Shanghai (Some rights reserved)
Wikipedia: China has the longest combined land border in the world, measuring 22,117 km (13,743 mi) from the mouth of the Yalu River to the Gulf of Tonkin. China extends across much of East Asia, bordering Vietnam, Laos, and Myanmar (Burma) in Southeast Asia; India, Bhutan, Nepal, Afghanistan, and Pakistan in South Asia; Tajikistan, Kyrgyzstan and Kazakhstan in Central Asia; and Russia, Mongolia, and North Korea in Inner Asia and Northeast Asia. Additionally, China shares maritime boundaries with South Korea, Japan, Vietnam, and the Philippines.
People and Languages
China is the most populous nation in the world. Its 1.39 billion people belong to 56 ethnic groups. The official language of China is Standard Chinese, also called Mandarin, which is also the most widely spoken language in the world. There are many other languages and dialects spoken in China, often grouped under the name “Chinese”. Linguists estimate that there are 297 languages spoken in China today.