The Buttonwood Agreement, which took place on May 17, 1792, started the New York Stock & Exchange Board now called the New York Stock Exchange. This agreement was signed by 24 stockbrokers outside of 68 Wall Street New York under a buttonwood tree. The organization drafted its constitution on March 8, 1817, and named itself the "New York Stock & Exchange Board". In 1863, this name was shortened to its modern form, the "New York Stock Exchange".