On 10 January 1929, Herge's first Tintin strip appeared in Le Petit Vingtieme, the youth supplement of the Belgian newspaper Le Vingtieme Siecle, with the opening episode of Tintin in the Land of the Soviets. The event launched one of the most consequential visual narratives in European comics. Contemporary accounts and comics-history sources emphasize that the series' clean, legible drawing, later known as ligne claire, helped elevate Franco-Belgian comics from children's entertainment into a sophisticated graphic language. The first story was politically propagandistic and later controversial, but the character, Snowy, and Herge's page design became internationally recognizable. BBC's anniversary coverage also notes the strip's commercial and artistic reach, including influence on artists such as Roy Lichtenstein and Andy Warhol.
Tintin became a central model for European comics, graphic storytelling, and the ligne claire style.