Hidekaz Himaruya begins publishing the Hetalia: Axis Powers webcomic, which later gets serialized as a manga.
The first printed volume of the Hetalia manga is released, reaching a wider audience and gaining popularity.
The Hetalia: Axis Powers anime adaptation airs its first episode, bringing the series to television audiences.
Hetalia gains international popularity through fan translations and fan communities, spreading outside Japan.
The second season of Hetalia: World Series anime is released, continuing the adaptation of the manga series.
An increase in official merchandise such as figures, DVDs, and other collectibles expands the franchise's influence.
The anthropomorphized countries begin taking shape, each representing their nation's traits and histories.
The start of the web manga where nations interact comedically reflecting historical and cultural relationships.
Events during the storyline showcase World War I and World War II through interactions between the country characters.
Germany, Italy, and Japan appear as a team reflecting their alliance in World War II, shaping key character dynamics.
Characterizations of the United States, United Kingdom, France, Russia, and China help to depict the allied side of historical conflicts.
Characters adjust to the aftermath of the wars reflecting political changes, including the formation of new nations like the Soviet Union and later Russia.
Tense interactions especially between the USSR and USA characters denote the Cold War period's geopolitical atmosphere.
Contemporary narratives explore alliances, globalization, and cultural exchanges among nations.
