King Jigme Wangchuck is the fourth king of Bhutan, having reigned from 1972 until his abdication in 2006. He is known for his efforts to modernize the country while preserving its unique culture and traditions. His reign saw significant developments in education, healthcare, and infrastructure. In 2006, King Jigme Wangchuck handed over the throne to his son, Jigme Khesar Namgyel Wangchuck, marking a transition to a constitutional monarchy. He is also recognized for promoting the concept of Gross National Happiness, which emphasizes the well-being of citizens over purely economic growth.