Death rates in the 20th century deaths in the 1900s with a death toll between 40,000,000 and 85,000,000 deaths. Other predominate wars in the 1900s include World War I with up to 65,000,000 deaths, the Russian Civil War with up to 9,000,000 deaths, the Afghan Civil War with up to 2,000,000 deaths, and the Mexican Revolution with up to 2,000,000 deaths. Several other major wars took place in the 20th century, such as the Iran–Iraq War, the Soviet–Afghan War, the second Sudanese civil war, the Korean War and the Vietnam war. It is estimated that traffic collisions caused the death of around 60 million people during
Catholic Church in the 20th century Catholic Church in the 20th century The Roman Catholic Church in the 20th century had to respond to the challenge of increasing secularization of Western society and persecution resulting from great social unrest and revolutions in several countries. It instituted many reforms, particularly in the 1970s under the Vatican II Council, in order to modernize practices and positions. In this period, Catholic missionaries in the Far East worked to improve education and health care, while evangelizing peoples and attracting numerous followers in China, Taiwan, Korea, and Japan. The Industrial Revolution brought many concerns about the deteriorating working and living conditions