The Second Bank of the United States was a federally chartered bank established in 1816 to serve as the nation's central financial institution. It was created to stabilize the economy after the War of 1812, control inflation, and provide credit to the government and private businesses. This institution played a crucial role in the economic landscape during the presidency of Andrew Jackson, who saw it as a symbol of elite power and corruption, ultimately leading to his fierce opposition and the bank's eventual demise.