中国, or China, is the world's most populous country, with over 1.4 billion people. It is located in East Asia and is known for its rich history, diverse culture, and significant contributions to art, science, and technology. The capital city is Beijing, which is famous for landmarks like the Great Wall and the Forbidden City. The country has a vast landscape that includes mountains, rivers, and deserts. China has a mixed economy, being one of the largest in the world, and is a major player in global trade. The official language is Mandarin, and the country has a variety of ethnic groups, with the Han Chinese being the largest.