The British especially, was quite drawn to the potential of Kota Setar (as it was then known). Gradually, Kota Setar thrived and further evolved into a commercial, transportation and communication hub of Kedah. The name was then changed from Kota Setar into Alor Setar, a reflection of its geographical features located in a small stream (known as "Alor" in Malay) which was frequented by the Malay traders from the neighbouring states. However, the name Kota Setar was retained as sub-district under Alor Setar. 19th and 20th century Other significant events during the turn of the 20th century includes the reunification of Perlis and Setul (now Satun) to Kedah by the Siamese in May 1897 (both provinces had been separated from Kedah in 1821) held in Balai Besar. The event was attended by the Crown Prince of Kedah, Tuanku Abdul Aziz as a representative of Sultan Abdul Hamid Halim Shah. In 1904, the city witnessed the grand wedding of the five children of Sultan Abdul Hamid Halim Shah, lasting for 3 months and the cost estimated to be 3 million Ringgit. On 25 July 1905, the Legislative Council of Kedah (Majlis Mesyuarat Negeri) was formed in Alor Setar, with the Crown Prince, Tuanku Abdul Aziz held as its president. Following the Anglo-Siamese Treaty of 1909 on 7 July 1909, the transfer of power from the Siamese to British administration was held on 15 July 1909 Balai Besar. Alor Setar fell to the Japanese occupation on 13 December 1945 and was annexed to the Siamese until 1946. The handover ceremony from Siamese to the British was held in Padang Court, Alor Setar 18 October 1946. The town joined the protest against Malayan Union during the post-war period. The mass protest was attended by 10,000 against the British backed-proposal. It was led by Tunku Abdul Rahman together with key leaders from UMNO. The town also witnessed the 4th UMNO General Assembly which lay the draft for the foundation of the present-day Constitution of Malaysia. The coronation ceremony of Abdul Halim of Kedah, the 28th Sultan of Kedah was held in Balai Besar on 20 February 1959. The city celebrates the silver jubilee of Sultan Abdul Halim in 1983. The change of status of Alor Setar throughout the 20th century was also closely parallel by the rise of its urban development, demographic and population growth. The council was upgraded to Kota Setar Municipal Council