In 1636, Gowanus Bay – named after Gauwane (Gouwane, lit. "the sleeper"), a Canarsee Indian – was the site of the first settlement by Dutch farmers in what is now Brooklyn.
At the time, Gowanus Creek opened into Gowanus Bay. In the 19th Century the creek became a canal.
Area surrounding the Gowanus Canal. From NYC Government document "Gowanus: A Framework for a Sustainable, Inclusive, Mixed-use Neighborhood"
View of the house of Simon Aertsen De Hart, still standing on Gowanus Bay in 1867. From the New York Public Library digital archives. Originally published by Hayward & Co.