King Vajiravudh was especially interested in social and cultural matters. He was responsible for such social reforms in Siam as the adoption of the Gregorian calender, the introduction of free primary schooling and compulsory vaccination. During his trip to Singapore in 1924, he paid special interest to social and cultural institutions. Among other things, he looked at the public health system, the military and the arts and culture. During his visit King Vajiravudh went to see an outdoor entertainment at the Happy Valley, a dance party at the Victoria Memorial Hall, and the play "Dandy Dick".