What are some things that happened in 1819?

In 1819, several significant events occurred globally. The U.S. experienced the Panic of 1819, the first major financial crisis in the country, which led to widespread economic hardship. In Europe, the Peterloo Massacre took place in Manchester, England, where cavalry charged into a crowd demanding political reform, resulting in numerous casualties. Additionally, the first modern bicycle was invented in Germany by Baron Karl von Drais, marking a notable advancement in transportation technology.