The year of 1939
- King Ottokar's Sceptre is first published in book form.
- As a result of the position taken by Hergé in favor of the Chinese people in The Blue Lotus, he is invited to China by the wife of Chiang Kai-Shek, the leader of the Republic of China. However, the imminent start of World War II in Europe prevents the visit.
- August 10 - King Ottokar's Sceptre finishes its original run in Le Petit Vingtième.
- September 28 - Land of Black Gold begins its original publication run in Le Petit Vingtième.
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