• Happy World was officially opened in May 1937. It was developed by George Lee Geok Eng, the owner of Nanyang Siang Pau.
• Happy World, New World, and Great World Amusement Parks made up the “Three Worlds” in Singapore.
• In addition to a dance hall that could accommodate 300 couples, Happy World also had an indoor stadium that could seat 10,000 spectators, which was then the largest in Singapore and Malaya. The stadium hosted many significant international basketball, badminton, boxing and wrestling matches.
• In 1964, Eng Wah Organisation took over the park, and renamed it Gay World Amusement Park in 1966.
• In the 1970s and 1980s, Gay World gradually lost its former glory due to its ageing facilities. It was officially closed in 2000 and was the last of the Three Worlds to be demolished.

At that time, Happy World had two stages dedicated to opera performances. With Cantonese, Teochew and Hokkien operas in constant rotation, Happy World drew a wide audience of opera fans in search of their favourite entertainment. (Lianhe Zaobao, 21/5/2000)

The dance hostesses of Happy World contributed to Singapore’s development. In addition to raising funds for the Nanyang University Fund, they also founded “Happy School” to offer education to children who had dropped out of school after the Second World War. Founded in 1946, the school was operational for 33 years and enrolled over 3,000 students.