The document discusses the history and types of banks. It traces the origin of modern banking to merchants, money lenders, and money changers. Banks are institutions that collect spare money from savers and lend it to borrowers. The main types of banks are central banks, commercial banks, exchange banks, industrial banks, agriculture banks, and mortgage banks. Central banks are responsible for a country's financial stability and act as the lender of last resort. Commercial banks provide loans and accept deposits from the public.