Japan received the Xbox 360 on December 10, 2005, making it one of the console’s launch territories.
Microsoft launched the Xbox 360 in a staggered international release. The system first appeared in North America on November 22, 2005, followed by Europe and other regions, while Japan received it on December 10. This schedule made the 360 the first major seventh-generation console to reach the market.
The Japanese launch was strategically important because Japan was a major home-console market dominated by established domestic companies. Microsoft supported the release with Japanese-developed and Japan-focused games, but the Xbox 360 remained less successful there than in North America and Europe.
The date is not the same as the console’s worldwide launch date. “Launch territory” refers to a region included in the initial release period, rather than a later market where the system became available through normal retail distribution.