Henryk Jerzy Chmielewski (7 June 1923 – 22 January 2021), also known under his pseudonym Papcio Chmiel, was a Polish comic book artist and journalist. During World War II, Chmielewski served in the Home Army and took part in the Warsaw Uprising. After the war, he started working as a graphic artist in the Świat Młodych magazine, where he also published comics. Since the debut of his first Tytus, Romek i A'Tomek comic book in 1966, he focused his career almost entirely on this series, telling the story of Tytus de Zoo, an anthropomorphic, talking chimpanzee who wants to become a human. The last, thirty first book of the main series was published in 2008, but Chmielewski continued to create other works, such as artbooks, with his characters. Chmielewski's comics are known for the use of absurdist humour, puns and word plays. Aimed at children and teenagers, with the goal of being both entertaining and educational, his works often explore history (especially history of Poland), science, art or have the characters trying different professions. Early life and World War II Henryk Chmielewski was born on 7 June 1923 in Warsaw. During World War II, he was a member of the 7th Infantry Regiment of the Home Army "Garłuch" (). He took part in the Warsaw Uprising. Private life In 1949, he married Anna née Śliwińska. Together, they had daughter Monika (born 1951) and son Artur Bartłomiej (born 1957). They divorced in 1974. Chmielewski's son Artur works at JPL. Chmielewski died on the night of 22 January 2021. Career in Świat Przygód and Świat Młodych On 1 September 1947, Chmielewski started working as a graphic artist in the Świat Przygód (), a magazine aimed at children and teenagers. The magazine was often publishing Western comic strips and parts of comic books translated to Polish, taken from foreign newspapers without asking for licensing copyright. One of the comics published in such manner was the American King of the Royal Mounted, copied from a Swedish magazine. Once Świat Przygód couldn't obtain the newest issue of this newspaper, Chmielewski was asked to draw his own episodes of King's adventures, so the magazine could avoid abruptly ending the series without explanation. Six such episodes were created, which Chmielewski counts as his debut as an comics author in his autobiography. When Chmielewski was answering letters to the editor sent to his newspaper, he would write under