High Quality Content by WIKIPEDIA articles! The Hudson Historic District includes most of downtown Hudson, New York, United States, once called "one of the richest dictionaries of architectural history in New York State". It is a 139-acre (56 ha) area stretching from the city`s waterfront on the east bank of the Hudson River to almost its eastern boundary, with a core area of 45 blocks. It has 756 contributing properties, most of which date from the city`s founding in 1785 to the mid-1930s. In 1985 it was listed on the National Register of Historic Places.