I highly recommed reading The Big Oyster: History on the Half Shell by Mark Kurlansky (Ballantine Books) Did you know that in the 16th and 17th century that 1/2 the world's oysters came from New York City's rivers (Hudson, Harlem, East)? Best food read in a long time.
Before NY was the big apple it could have been called the Big Oyster.
As one born and raised in N.Y., I never knew this about my city. For near 2 centuries, NY City provided oysters to London, Paris and Amsterdam. The native people of Manhattan lived on a diet of oysters.
The first restaurants in NY were Oyster bars. For anyone interested in gastronomic history The Big Oyster is a great read.