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
Decade 1960 to 1969, "the 197th decade" spans 1961 through 1970. A decade may also refer to an arbitrary span of ten years. For example, the statement "during his last decade, Mozart explored chromatic harmony to a degree rare at the time", merely refers to the last ten years of Mozart's life without regard to which calendar years are encompassed. Particularly for the 20th century, a nominal decade is often used to refer not just to a set of ten years but rather to a period roughly approximating those ten years - for example, the phrase "the sixties" often refers to