"Two Thousand" typically refers to the year 2000, which marked the beginning of a new millennium. This year was significant for various reasons, including the widespread anticipation of the Y2K bug, a computer programming issue that many feared would cause global disruptions as the year changed from 1999 to 2000. In addition to technological concerns, the year 2000 was notable for major events such as the Sydney Olympics, where athletes from around the world competed in various sports. It also saw the launch of the Euro, a new currency adopted by many European countries, further integrating the European economy.