But between the time when Solomon Peters received his grant and the day when the opening of the Fifth Avenue Hotel ushered in a new era, the land experienced many vicissitudes. In the last years of the eighteenth century it was a Parade Ground, at one time extending from Twenty-third to Thirty-fourth Streets, bounded on the east by the Eastern Post-road and on the west by the Bloomingdale Road. At the southern end a Potter's Field was opened in 1794, and there were buried the victims of the frequent yellow-fever epidemics. But in 1797 a new Potter's Field was opened in Washington Square. According to the plans of the Commissioners' Map of 1811, there was to be no Fifth Avenue between Twenty-third Street and Thirty-fourth Street. The Avenue was to end temporarily at the former point, and resume its journey eleven blocks farther north. As early as 1785 a powder magazine stood within the present domains of the Square. A United States Arsenal, erected in 1808, was near the spot of the Farragut statue. In 1823 the Arsenal building became the house of refuge of the Society for the Reformation of Juvenile Delinquents, the first organization instituted in America to care for youthful offenders. In 1839 it was destroyed by fire. That was two years after the Parade Ground had been reduced to its present limits of 6.84 acres and renamed in honour of President Madison. In 1844 the Eastern Post-road was closed. Its course may still be traced by the double row of trees that runs northeast towards Madison Square Garden. In 1847 the Square was formally opened and soon after society began to migrate there. That was during the mayoralty of James Harper. From 1853 until the end of the Civil War it was the social centre of the city. "Among those who lived in this vicinity," says "Fifth Avenue," "were Leonard W. Jerome, and his elder brother, Addison G. Jerome, who, with William R. Travers, were social leaders and prominent Wall Street brokers; James Stokes, who, in 1851, built at No. 37 Madison Square, East, the first residence on Madison Square, and whose wife was a daughter of Anson G. Phelps; John David Wolfe, whose daughter, Catherine Lorillard Wolfe, gave her magnificent art collection to the Metropolitan Museum of Art; Frank Work, William and John O'Brien, Henry M. Schieffelin, James L. Schieffelin, Samuel B. Schieffelin, Benjamin H. Field, Peter Ronalds, and William Lane."