World of Warcraft: The Burning Crusade is the first expansion pack for the MMORPG World of Warcraft. It was released on January 16, 2007 at midnight (12:00 AM) in Europe and North America, and sold nearly 2.4 million copies that day, making it the fastest-selling PC game in those regions. It was released on January 17, 2007 in Australia and New Zealand; in total, approximately 3.53 million copies were sold across these territories in the first month of release, including 1.9 million in North America over 100,000 copies in Australasia, and nearly 1.6 million in Europe. It was also released in Singapore, Thailand, and Malaysia on January 16, 2007. It was later released in South Korea on February 1, 2007; in Taiwan, Hong Kong, and Macau on April 30, 2007. The game was released in China on September 6, 2007.