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
20th-century events and sign the Kyoto treaty, which set mandatory limits on carbon dioxide emissions. The celebration of the ending of the 20th century and the beginning of the 21st century was at New Year's Day, 2000. 20th-century events The 20th-century events include many notable events which occurred throughout the 20th century, which began on January 1, 1901, and ended on December 31, 2000, according to the Gregorian calendar. In Europe, the British Empire achieved the height of its power. Germany and Italy, which came into existence as unified nations in the second half of the 19th century, grew in power, challenging