Why is population doubled between 1800 and 1930?

The population doubled between 1800 and 1930 due to several interconnected factors, including improvements in agriculture, which enhanced food production and reduced famine. Advances in medicine and public health led to lower mortality rates, particularly among infants and children. Additionally, the Industrial Revolution spurred urbanization and economic opportunities, attracting people to cities and encouraging higher birth rates. Together, these factors created a demographic shift that significantly increased the global population during this period.