Final answer:
Factors such as disease, historical events, societal changes, and technological advancements have impacted population growth throughout history.
Step-by-step explanation:
The population growth was previously kept in check by various factors. In pre-industrial societies, high death rates due to diseases and limited medical advancements prevented the population from growing rapidly. Additionally, historical events like the Civil War, the Great Depression, and World War II led to periods of population decline in the United States. Moreover, societal and economic changes, such as the transition from rural to urban living and the increasing cost of raising children, contributed to a decrease in birth rates and slowed population growth.
Another important factor is the impact of migration, public health measures, and technological advances on population growth. Human migration to different parts of the world has expanded inhabitable areas and increased population size. Improved public health practices, sanitation, and the use of antibiotics and vaccines have significantly reduced deaths from infectious diseases and increased life expectancy. Technological advancements, like the use of fossil fuels in agriculture and the development of mechanization and fertilizers, have also supported population growth.
In summary, a combination of factors like disease, historical events, societal changes, and technological advancements have influenced population growth throughout history.