Austrian Empire influence in the Austrian Empire. Francis' heir was his son Ferdinand I, but he suffered from an intellectual disability. Ferdinand's accession preserved the Habsburg dynastic succession, but he was not capable of ruling. The leadership of the Austrian Empire was transferred to a state council composed of Metternich, Francis II's brother Archduke Louis, and Count Franz Anton Kolowrat, who later became the first Minister-President of the Austrian Empire. The liberal Revolutions of 1848 in the Austrian Empire forced Metternich's resignation. Metternich is remembered for his success in maintaining the status quo and the Habsburg influence in international affairs. No Habsburg
Diseases and epidemics of the 19th century century. Cholera came in seven waves, the last two of which occurred in the 20th century. The first cholera pandemic started in 1816, spread across India by 1820, and extended to Southeast Asia and Central Europe, lasting until 1826. A second cholera pandemic began in 1829, reached Russia, causing the Cholera Riots. It spread to Hungary, Germany and Egypt in 1831, and London, Paris, Quebec, Ontario and New York City the following year. Cholera reached the Pacific coast of North America by 1834, reaching into the center of the country by steamboat and other river traffic. The third cholera pandemic