Which downtown neighboorhood was annexed by Albany in 1815?
Neighborhoods of Albany, New York:  Downtown Albany is the city's oldest neighborhood, centered on State Street, one of Albany's oldest streets and its original main street. Arbor Hill, Albany, New York: Arbor Hill is a neighborhood in Albany, New York, generally defined as the area from Clinton Avenue north to Tivoli Hollow and the Livingston Avenue Railroad Bridge and from Broadway west to Henry Johnson Boulevard. Arbor Hill, Albany, New York:  There are two sub-neighborhoods in Arbor Hill, Dudley Heights and the Ten Broeck Triangle.
i don't know