Death rates in the 20th century fever, polio, measles, hepatitis among others. However, war, genocide and Holocausts have led to many millions of deaths throughout the century, and late in the century AIDS had already killed millions, particularly in Africa and south-east Asia. Cancer also killed millions via lifestyle and pollution generated by increased work in factories. During the 20th century, an enormous improvement in public health led to an overall decrease in death rates. Infant mortality rates and maternal mortality rates have dramatically decreased. In the early 1900s, 6-9 women died in pregnancy-related complications for every 1,000 births, while 100 infants died before they were
New Jersey in the 20th century New Jersey in the 20th century New Jersey in the twentieth century underwent many changes. New Jersey's position along the Atlantic Ocean made it a prominent part of both of the World Wars. Despite rising in the Roaring Twenties, New Jersey's economy slowed with the start of the Great Depression. It also became a site for Nike missile batteries during the Cold War. In the 1960s, several race riots occurred following the start of urban decay. Through the 1970s, urbanization increased again, and these problems slowed down. The Standard Oil Company of New Jersey was a large integrated oil producing,