In which year did Central Park in New York first open to the public?

Central Park is an urban park in Manhattan, New York City, U.S. state of New York. It comprises 843 acres (341 ha) between the Upper West Side and Upper East Side, roughly bounded by Fifth Avenue on the east, Central Park West (Eighth Avenue) on the west, Central Park South (59th Street) on the south, and Central Park North (110th Street) on the north. Central Park is the most visited urban park in the United States, with 40 million visitors in 2013, and one of the most filmed locations in the world.

The park was established in 1857 on land acquired by the city. In 1858, landscape architect Frederick Law Olmsted and architect/landscape designer Calvert Vaux won a design competition to improve and expand the park with a plan they titled the "Greensward Plan". Construction began the same year, and the park's first area was opened to the public in the winter of 1858. Construction north of the park continued during the American Civil War in the 1860s, and the park was expanded to its current size in 1873. After a period of decline in the early 20th century, Robert Moses started a program to clean up Central Park. Another decline in the late 20th century spurred the creation of the Central Park Conservancy in 1980, which refurbished many parts of the park during the 1980s and 1990s.