ancient cultural institution Maryland Academy of Sciences (from 1797) in its Maryland Science Center and the historic ship USS Constellation (1854 Sloop of War) This was also the historic site of the original Centre Market at East Baltimore Street (formerly "Long Street" when the town was laid out in 1730, and later known as "Market Street", recognizing the important place that it led to in the east), south to Water Street (former original shoreline of the harbor "Basin" in colonial times) and east of South Frederick Street (alley) to the adjacent Jones Falls stream. It was also traditionally known as the "Marsh Market" because of being on the site of the old Thomas "Harrison's Marsh" on the western banks of the Jones Falls during the colonial era 18th and early 19th centuries which separated old Baltimore Town from the neighboring village of Jones' Town to the northeast across the Falls - spanned by a vital link in early 18th century local commerce and growth, a wooden bridge which was built which resulted in the naming of "Bridge Street" (later to be renamed North Gay Street, after a local family) and led to the merger of the two villages by 1745. Here in 1763, the first public market house for both merged towns was constructed and became the most important center for commerce resulting in its original name of "Centre Market". It wasn't until two decades later, after the American Revolution ended, that additional market houses throughout the expanding city were constructed including today's world-famous "Lexington Market" (old Western Precincts Market) along West Lexington Street between Eutaw, Paca and Greene Streets in 1782 and the "Broadway Market" (old Eastern Precincts Market) at the foot of Broadway - formerly known there too as Market Street (between Fleet [previously Canton Avenue] and Thames Streets) above the waterfront of the Fells Point neighborhood. During the 19th century, additional market houses under sponsorship of the municipal government were constructed in all quarters of the growing city such as "Hanover Market", "Belair Market", "Richmond Market", "Lafayette Market" (now "The Avenue Market"), "Hollins Market", "Northeast Market", "Cross Street Market", "North Avenue Market" and others which dominated local trade, especially retail, but the most important, largest and center of the trade (including wholesale) was here at "Centre Market" on Market Place along the Jones Falls west bank. Here also was the old second building of the famous Maryland