At the end of the 1800s China's four million square miles held 450 million people, up from 200 million a century earlier. The ruling dynasty was the Ching, established by Manchus from Manchuria, who in 1644 had superseded the Ming. These descendants of the Tatars appreciated Chinese civilization and adopted a conciliatory attitude toward their subjects. They refused, however, to allow intermarriage with the Chinese, for they realized that only their blood difference kept them from being assimilated …showed first 75 words of 669 total…

…showed last 75 words of 669 total…the opium trade continued to thrive. The British and French again defeated China in a second opium war in 1856. By the terms of the Treaty of Tientsin (1858) the Chinese opened new ports to trading and allowed foreigners with passports to travel in the interior. Christians gained the right to spread their faith and hold property, thus opening up another means of western penetration. The United States and Russia gained the same privileges in separate treaties.