1) McDonald's first opened stores in China in 1990 and saw rapid expansion over the following decades, increasing to over 1000 stores by 2008 and planning to reach 2000 total stores by the end of 2013. 2) McDonald's in China has some differences from other countries, such as lower prices that vary by area and some specialty dessert stores, but also similarities like 24-hour operations and limited menus. 3) McDonald's sales in China increase during major events like the Beijing Olympics in 2008, but the company aims to continue expanding regardless of specific events.