Dr. Samuel Bard makes an appeal to the citizens of New York City for the establishment of the city's first hospital.
King George III of England grants royal charter to "The Society of the Hospital in the City of New York in America", later changed to The Society of the New York Hospital.
- 1776 to 1783
The hospital is opened for colonial soldiers wounded while defending New York City. The hospital is used as barracks by the British soldiers while they occupied New York City.
New York Hospital opens to civilians.
New York Hospital continues its care of the mentally ill, by opening the Bloomingdale Asylum in Morningside Heights (later the site of Columbia University).
The New York Asylum for Lying-In Women is founded.
The Nursery for the Children of Poor Women (later called Nursery and Child's Hospital), the first nursery in New York City, opens on St. Mark's Place.
The New York Infant Asylum is chartered, and opens on 106th Street.
- 1869 to 1870
From January to May of 1869, patients are moved to the South Hospital Building (New York Hospital's facility for the seamen). The North House and Main Buildings are demolished. The hospital operates out of the South Hospital Building until February of 1870. The South Hospital is razed and the property is sold.
New York Hospital opens the House of Relief, a sub-station for emergency care on Chambers Street. The House of Relief later opens a facility on Hudson Street in 1894.
Bloomingdale Asylum moves to White Plains.
Cornell University Medical College is established.
Manhattan Maternity and Dispensary opens at 327 East 60th Street.
New York Hospital opens Campbell Convalescent Cottages.
In September, New York Hospital-Cornell Medical Center opens.
- 1942 to 1945
The Ninth General Hospital consisting of hospital staff is deployed in the South Pacific.
Cornell University Graduate School of Medical Sciences is established.
Cornell University-New York Hospital School of Nursing closes.
New York Hospital merges with Presbyterian Hospital to form NewYork-Presbyterian Hospital.
Cornell University Medical College changes its name to Joan and Sanford I. Weill Medical College of Cornell University. Cornell University Graduate School of Medical Sciences changes its name to Joan and Sanford I. Weill Graduate School of Medical Sciences of Cornell University. Later the names were shortened to Weill Cornell Medical College and Weill Cornell Graduate School of Medical Sciences.