| 1872 |
Dr. Julius Sachs (brother of Samuel Sachs a partner in the international banking firm of Goldman, Sachs & Company) opens the Franklin School on 34th Street and Broadway within the Sachs Collegiate Institute. |
| 1874 |
The Franklin School moves to 45th Street and Sixth Avenue |
| 1876 |
The growing Franklin School relocates again to 49th Street and 7th avenue and for the first time occupies a whole building. |
| 1880 |
The New York School of Languages is founded on 15 West 43rd Street as an academy of classical studies. |
| 1882 |
Franklin School moves to 38 West 59th Street |
| 1888 |
The New York School of Languages is renamed in honor of Timothy Dwight, President of Yale University because many of the staunchest friends of the School are Yale Alumni. |
| 1896 |
Dwight becomes part of the New York Prepatory School whose principal is Emil E. Camerer. |
| 1901 |
Dr. Sachs is appointed Professor of Education at Columbia University and is suceeded by Dr. Otto Koenig who makes Franklin well known among the leading collegesfor men. |
| 1904 |
Dwight wins the Interscholastic Athletic Association League championship in football. |
| 1912 |
Franklin changes location for the final time to 18 West 89th Street. |
| 1915 |
Franklin Students raise $414,000 for the WWI Liberty Loan Drive surpassing the $100,000 quota set for private schools. |
| 1916 |
Dwight moves for the fourth time 72 Park Avenue between 38th and 39th streets to accomodate its growth. |
| 1932 |
In June 1932, Dr. Koenig retires and faculty members Clifford W Hall and David P. Berenberg become headmasters at the Franklin School. |
| 1933 |
Franklin School establishes a student council. |
| 1941 |
Full-day kindergarten tuition at Franklin is $150 per year. Junior and Senior tuition reaches $600. |
| 1951 |
Franklin School becomes co-educational. |
| 1953 |
Dwight moves for the fifth time to 402 East 67th Street between First and York Avenues. |
| 1960 |
Dwight starts “Committee on Student Honor” |
| 1967 |
The Dwight School becomes Co-educational. |
| 1968 |
The Brownstone on 88th Street is converted for Franklin school use. |
| 1972 |
Chancellor Spahn and Sir Maurice Bowra, Warden of Wadham College at Oxford University founded The Woodside Park School in London. Dwight becomes the first independent school in the United States to establish a permanent international campus. |
| 1974 |
Dwight merges with the Bentley School to add elementary and middle school programs. |
| 1980 |
Under Dr. Paul Beresford Hill’s Leadership, Franklin adopts the International Baccalaureate (IB) Program and changes its name to the Anglo-American School. |
| The Anglo-American Boys Varsity Basketball Team held first place in the ACIS League, averaging 68 points per game! |
| 1993 |
Dwight merges with Anglo-American and relocates to 18 West 89th Street and acquires additional space in 291 Central Park West. |
| 1999 |
The Dwight Girls Varsity Basketball has a stellar season, placing first in the ACIS League and second in the GISAL League. In addition, they were First Place GISAL Champions and New York Federation State Champions. |
| 2005 |
With the opening of the Woodside Preschool on Riverside Boulevard in 2005, Dwight becomes the first school to offer the IB PYP Program ages 2-4. |
| 2007 |
In 2007, Dwight completed The Quad, the new academic and social hub of the School. The new space signals more exciting changes ahead for Dwight. The adjoining building at 22 West 89th Street was acquired in July 2007. |