After 220 years of independence, the New York Stock Exchange, a.k.a the Big Board, may be acquired by Atlanta-based Intercontinental Exchange.
May 17, 1792 This image depicts the signing of the original brokers' agreement that founded the New York Stock Exchange. The deal, called the Buttonwood Agreement, gets its name from the tree under which it was signed. Only five securities were traded that year. The first listed company was the Bank of New York, according to the Library of Congress. /AP Buy Photo