New York City in depth. The ice sheet scraped away large amounts of regolith, leaving the bedrock that serves as the geologic foundation for much of New York City today. Later on, movement of the ice sheet contributed to the separation of what are now Long Island and Staten Island. In the precolonial era, the area of present-day New York City was inhabited by Algonquian Native Americans, including the Lenape, whose homeland, known as Lenapehoking, included Staten Island; the western portion of Long Island, including the area that would become Brooklyn and Queens; Manhattan; the Bronx; and the Lower Hudson Valley. The first
Demographics of New York City settled along Ocean Parkway in Brooklyn creating a unified community consisting of about 75,000 people in this area, while the other Sephardic Jews live in the Upper East Side of Manhattan and in Staten Island. 19th-century Jewish immigrants settled mainly in the tenement houses of the Lower East Side of Manhattan. New York City's current Jewish population is dispersed among all the boroughs; Brooklyn's Jewish population in 2011 was estimated as 561,000, and Manhattan's was 240,000. The Orthodox community is rapidly growing due to higher birthrates among Orthodox (especially Hasidic) Jews, while the numbers of Conservative and Reform Jews are