Who died in February 2020

British-American theoretical physicist and mathematician known for his profound work in quantum field theory, astrophysics, and the mathematical formulation of quantum mechanics

Egyptian politician and military officer who served as the 4th president of Egypt from 1981 to 2011, following a distinguished career in the Egyptian Air Force and as Vice President

Chinese ophthalmologist known for warning about the coronavirus in December 2019

Kenyan politician who served as the second president of Kenya for 24 years, making him the country's longest-serving president