The year 2009 notes the 400th anniversary of the voyages of Henry Hudson, who led (for the Dutch) the first European expedition to sail up the river that now bears his name, and that of the Frenchman Samuel de Champlain, the first to gaze upon the waters of the namesake lake. To celebrate these simultaneous Quadricentennials – as well as the 200th anniversary of Robert Fulton’s maiden journey up the Hudson River on the first successful steamboat, the there are many events, as well as resources, posted on the web at ExploreNY400.com.
A replica of Henry Hudson's ship the Half Moon, and information about the New Netherland Museum is available at http://www.newnetherland.org/. (I volunteered to led tours on the Half Moon once last year and it is a very interesting ship to visit. It sometimes docks in New York City.)