2009 was a common year starting on Thursday of the Gregorian calendar, the 2009th year of the Common Era (CE) and Anno Domini (AD) designations, the 9th year of the 3rd millennium, the 9th year of the 21st century, and the 10th and last year of the 2000s decade.
Dangun is worshipped today as a deity by the followers of Cheondoism and Daejongism. In Taekwondo. Dangun is the second pattern or hyeong in the International Taekwon-Do Federation form of the Korean martial art taekwondo. Students learn that the hyeong represents "the holy legendary founder of Korea in the year 2333 BC."