The American Stock Exchange established

The origins of stockbrokers in New York trace back to 1788 with an authorized bond issue and the informal establishment of a stock exchange in 1792 under a buttonwood tree on Wall Street. By 1869, organized trading rules were formalized through the New York Stock and Exchange Board. Brokers who traded unlisted securities outside became known as “curbstone brokers,” forming the New York Curb Market, known for chaotic trading. Called the “Father of the Curb,” E. E. Mendels in an attempt to regulate the market, drew up an informal agreement that eventually became the Curb Market Association. 

Curb Market Agency was fou,nded which grew to be the largest international stock market, listing more foreign issues than all other U.S. securities markets combined. The New York Curb Exchange, evolved from an informal group of curbside brokers trading on Broad Street in Manhattan in the early 20th century. Initially disorganized, the curb market operated outdoors, with brokers shouting orders up to nearby office windows. Efforts to regulate and structure the market began around 1907 under Emanuel S. Mendels and Carl H. Pforzheimer. Although early curb traders resisted formal organization, fearing restrictions from other exchanges, the New York Curb Market Agency was founded in 1908 to establish trading rules. By 1911, the New York Curb Market Association was formed, marking the curb's transition into a structured exchange. Often viewed by the more established New York Stock Exchange (NYSE) as less prestigious, the curb exchange still maintained strict listing standards and rejected NYSE stocks that didn’t meet its criteria after the NYSE discontinued its unlisted department in 1910.

Renamed the American Stock Exchange.