Pathum Wan is one of the fifty districts (khet) of Bangkok, Thailand. It lies just beyond the old city boundary of Khlong Phadung Krung Kasem and was a rural area on the eastern outskirts of the city when royal villas were built there in the late nineteenth century. The district was officially established in 1915, and covers an area of 8.37 square kilometres (3.23 sq mi). A large part of the distr…