His Majestry King Bhumibol is the ninth king of the Chakri Dynasty and the longest reigning monarch in the history of Thailand. He is recognized as the heart of the Thais and father of the nation. He is held in high esteem, both by his own citizens and people in all parts of the world. He usually visits his people in both rural and urban areas to learn about their needs and helps them to solve their problems. For example, he has invented a machine for water treatment called “Chai Pattana” which is useful in both agriculture and industry. Because of his countless projects, he has helped Thailand to become more prosperous. December 5 was announced as National Father’s day in 1980, and the canna or Buddha Raksa has been used as the symbol for National Father’s Day.