Mexican diplomat and Nobel Peace Prize winner Alfonso García Robles died September 2, 1991.

“Mankind is confronted with a choice: we must halt the arms race and proceed to disarmament or face annihilation”.
Robles on accepting the prize in 1982.

Alfonso García Robles, Nobel Peace Prize 1982
C. Alfonso Garcia Robles, with the Nobel Medal and C. Alfonso Garcia Robles, a Branch of Laurel
Released by Mexico in 1982
Designed by Ramón Alcántara Rodríguez País

His tireless work in creating a denuclearised zone in Latin America led to the Tlatelolco Agreement. (see Treaty of Tlatelolco | United Nations Platform for Nuclear-Weapon-Free Zones)

García Robles played a crucial role both in launching and implementing the agreement on a denuclearised zone in Latin America, which was concluded in Tlatelolco on March 12, 1967. He has in fact been called the father of the Tlatelolco Agreement. This, proposed by Adolfo López Mateos, President of Mexico at the time, was the outcome inter alia of the Cuba crisis. The idea was that a ban on nuclear arms would ensure that this part of the world would not be involved in any conflict between rival great powers. Negotiations were conducted by García Robles, and his enterprise and diplomatic skill deserve a large measure of credit for the fact that the agreement was successfully concluded after some years of negotiation. The final goal, however, has still to be reached, as countries such as Brazil and Argentina have signed the agreement but as yet not implemented it.
Alfonso García Robles – Biographical – NobelPrize.org

Last year was another Nobel tribute. 2024 focused on Barbara McClintock, Nobel Prize winning geneticist.