Héctor Germán 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 explored themes of resistance and social justice. In the 1970s, Oesterheld became politically active and opposed the military dictatorship in Argentina. He was kidnapped in 1977 and disappeared, becoming a symbol of the struggle against oppression. His legacy continues to inspire artists and activists in Argentina and beyond.