The Adventures of Tintin beginning in 2006 with "Tintin". It was a set of six different euro coins honouring Hergé: three 1½-euro silver coins featuring Tintin and the Professor, Tintin and Captain Haddock, and Tintin and Chang; a €10 (gold) featuring Tintin; and a €20 (silver) and a €50 (gold) featuring Tintin and Snowy. In 2007, on Hergé's centenary, Belgium issued its €20 (silver) Hergé/Tintin coin. During Hergé's lifetime, parodies were produced of the "Adventures of Tintin", with one of the earliest appearing in Belgian newspaper "La Patrie" after the liberation of the country from Nazi German occupation in September 1944. Entitled (""Tintin in
Tintin (character) and has prompted a few to devote their careers to his study. General Charles de Gaulle "considered Tintin his only international rival". Hergé biographer Pierre Assouline noted that "Tintin had a prehistory", being influenced by a variety of sources that Hergé had encountered throughout his life. Hergé noted that during his early schooling in the midst of World War I, when German armies occupied Belgium, he had drawn pictures in the margins of his school workbooks of an unnamed young man battling (a slang term for the Germans). He later commented that these drawings depicted a brave and adventurous character