Héctor Oesterheld was an Argentine writer and comic book creator, born on July 23, 1919, in Buenos Aires. He is best known for his influential comic series, particularly El Eternauta, which tells the story of a group of survivors facing an alien invasion. Oesterheld's work often reflected his political beliefs and social concerns, making him a significant figure in Argentine literature. In the 1970s, Oesterheld became involved in leftist politics, which led to his abduction by the military dictatorship in Argentina. He disappeared in 1977, and his fate remains unknown. His legacy continues to inspire artists and writers, highlighting the importance of freedom of expression.