Final answer:
Without more context about a specific monument and the four founders referred to in the question, an exact location cannot be determined. Monuments like Mount Rushmore, Vietnam Memorial, and others, each have their unique historical significance and locations.
Step-by-step explanation:
On November 16, 1975, a monument dedicated to four founders could refer to various historical monuments around the world, as the question does not specify a particular monument or founders. Without more context, it is challenging to identify the exact location. However, some of the notable monuments dedicated to individuals or groups of founders and influential leaders throughout history include:
Mount Rushmore - Located in South Dakota, dedicated to U.S. Presidents George Washington, Thomas Jefferson, Abraham Lincoln, and Theodore Roosevelt.
The Vietnam Memorial - In Washington D.C., commemorating the service members of the U.S. armed forces who fought in the Vietnam War.
The Holocaust Memorial and the Stonewall National Monument - Both in the United States, commemorating distinct historical events and movements.
Monuments in other countries, such as the dedication of a monument to Prince Vladimir I in Moscow, Russia, that took place on November 4, 2016.
These monuments serve to commemorate historical figures, celebrate nationhood, or memorialize significant events. If the student can provide additional details, a more precise answer can be given.