Albany, New York became the capital of New York in 1797 following formation of the United States. Albany is one of the oldest surviving settlements of the original British thirteen colonies, and is the longest continuously chartered city in the United States. During the late 18th century and throughout most of the 19th, Albany was a center of trade and transportation. The city lies toward the north end of the navigable Hudson River, was the original eastern terminus of the Erie Canal connecting to the Great Lakes, and was home to some of the earliest railroad systems in the world. In the 1920s,
Great Lakes Waterway lake freighters to travel from the system's saltwater outlet to its far interior. The Waterway has larger locks and deeper drafts than the lower Seaway, limiting large freighters to the four lakes upstream of the Welland Canal and Lake Ontario and similarly restricting passage beyond the canal by larger ocean vessels. The two waterways are often jointly and simply referred to as the "St. Lawrence Seaway", since the Great Lakes, together with the St. Lawrence River, comprise a single navigable body of freshwater linking the Atlantic Ocean to the continental interior. Shipping channels separate upbound traffic from downbound traffic. The