Emperor Khai Dinh was the 13th emperor of the Nguyen Dynasty in Vietnam, ruling from 1916 to 1925. He is known for his efforts to modernize Vietnam and for his close ties with the French colonial government. His reign was marked by significant political and social changes, as well as the construction of the Khai Dinh Tomb, which reflects a blend of traditional Vietnamese and European architectural styles. Khai Dinh's rule was characterized by a focus on cultural and educational reforms. He promoted the establishment of schools and encouraged the adoption of Western ideas, while also trying to preserve Vietnamese traditions. Despite his modernization efforts, he faced criticism for his collaboration with the French, which led to a complex legacy in Vietnamese history.