Jonas Salk died from heart failure at the age of 80 in La Jolla, California. His death marked the loss of a prominent figure in medical research and a champion of public health. Salk's legacy continues to inspire scientists and researchers in the pursuit of innovative solutions to global health challenges.

Jonas Salk marries Françoise Gilot, a French painter. Gilot was previously involved with Pablo Picasso. The marriage added a new dimension to Salk's life, merging the worlds of science and art.

The Salk polio vaccine was announced to be safe and effective. This announcement was a momentous occasion, marking a turning point in the fight against polio. It led to widespread vaccination campaigns and a significant decline in polio cases worldwide.

The official Polio Vaccine field trials begin with the participation of school children. This involved the distribution of the vaccine or placebo to children across the United States and Canada, followed by monitoring to determine the vaccine's efficacy and safety.

Jonas Salk vaccinated his own children with the polio vaccine. This act demonstrated his confidence in the safety of the vaccine and his commitment to protecting his family and others from polio. It also served as a symbolic gesture, inspiring public trust in the vaccine.

Jonas Salk, assisted by staff at the D.T. Watson Home for Crippled Children, injected 43 children with his killed-virus polio vaccine. This marked a significant step in testing the safety and efficacy of the vaccine, moving from animal trials to human subjects. It was a crucial phase in the development of the polio vaccine.