23 mar 1921 año - Heart Disease becomes leading cause of death in US
Descripción:
In 1921 heart disease surpassed pnuemonia as the leading cause of death in the United States and it remains to be the leading cause of death for Americans. The death rate from heart disease peaked in 1968 and has steadily declined since.Añadido al timeline:
fecha:
23 mar 1921 año
Ahora mismo
~ 104 years ago