Over the last 50 years, since its establishment as the capital of Bhutan, Thimphu has witnessed expansion, initially at a slow pace, then rapidly after the country was opened up to the outside world in 1974 during the Coronation of the fourth King, Jigme Singye Wangchuck when international media were present, and which marked Bhutan's "debut appearance on the world stage." Broadly, the city's natural systems are under three categories namely, the natural (forest, bush cover, river, and watersheds), agricultural (orchards, rice paddies, grazing lands) and recreational (public open space, parks, stadium).