Classicly

The twenty-seven respectable citizens of New York who, in 1792, met under a buttonwood tree in front of the premises now known as Number 60 Wall Street, and formed an association for the purchase and sale of public stocks at a fixed and unvarying commission, with a proviso of mutual help and preference, committed themselves to an enterprise of whose moment and influence in the future they could have formed no adequate conception.

At that date Wall Street was a banking district, small indeed when compared with its present condition, but important in its relations to the commerce of the nation. This transaction of the twenty-seven—among whom we find the honored names of Barclay, Bleecker, Winthrop, Lawrence, which in themselves and their descendants were, and are, creditably identified with the growth of the community—added the prestige and power of the stock exchange to those of the banks, and fixed for an indefinitely long period the destinies of the financial centre of the Union.