Few small American businesses last a decade let alone 160 years without changing a thing.
McSorley's Old Ale House in New York's East Village is the the very rare exception to that rule. And the secret to the bar's long-term success may have everything to do with two traditions.
The first is that the Irish bar was open only to men from its 1854 founding until a 1970 ruling that all New York City businesses must serve both female and male customers. The second might be considered a core business strategy. McSorley's house ale in two variations—"light" and "dark"—are the only drinks available on tap.