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Lists of state leaders in the 19th century include: List of state leaders in the 19th century (1801–1850) List of state leaders in the 19th century (1851–1900) List of state leaders in 19th-century British South Asia subsidiary states; List of state leaders in the 19th-century Holy Roman Empire; List of governors of dependent territories in ...
The disease spread across the South and Northwest. People who newly arrived from Europe were especially vulnerable to the deadly forms, but after the second generation, the colonists typically had non-fatal cases, characterized by a feverish season for a few weeks every year. [27]
The 1837 Great Plains smallpox epidemic spanned 1836 through 1840, reaching its height after the spring of 1837, when an American Fur Company steamboat, the SS St. Peter, carried infected people and supplies up the Missouri River in the Midwestern United States. [1] The disease spread rapidly to indigenous populations with no natural immunity ...
The preservation of slavery also relied on territorial expansion, which is why most southern states supported the Mexican American War of 1846-1848, and it is the same reason why South Carolinian representatives pushed hard in an attempt to reopen the African slave trade in Congress but were unsuccessful, providing another reason why the state ...
Most people became infected during their lifetimes, and about 30% of people infected with smallpox died from the disease, presenting a severe selection pressure on the resistant survivors. [ 29 ] In northern Japan, Ainu population decreased drastically in the 19th century, due in large part to infectious diseases like smallpox brought by ...
The disease killed an estimated 400,000 Europeans annually during the 19th century and one-third of all the blindness of that time was caused by smallpox. 20 to 60% of all the people that were infected died and 80% of all the children with the infection also died. It caused also many deaths in the 20th century, over 300–500 million.
By 1800, many political leaders were convinced that slavery was undesirable, and should eventually be abolished, and the slaves returned to their natural homes in Africa. The American Colonization Society , which was active in both North and South, tried to implement these ideas and established the colony of Liberia in Africa to repatriate ...
Malaria has had multiple documented temporary epidemics in otherwise non-affected or low-prevalence areas, but the vast majority of its deaths are due to its constant prevalence in affected areas. [2] Tuberculosis (TB) became epidemic in Europe in the 18th and 19th century, showing a seasonal pattern, and is still taking place globally.