During the second half of the 20th century's first decade, the political power of constitutionalism in Qajar Iran and Ottoman Turkey became very strong. In Ottoman Kurdistan, some Kurds took part in tax resistance revolts that did not have success. In Iran, Mozaffar ad-Din Shah made a constitution in December 1906 after there were many protests in the country during 1905. However, Mohammad Ali Shah became Iran's ruler when Mozaffar ad-Din Shah died, and the new shah ended the constitution and the new parliament in 1908. The Russian Empire and the British Empire helped Mohammad Ali Shah take power. By that time, the Qajar government's power was weak, and it had lost control in Iranian Kurdistan. Many Kurdish rebels came there from Ottoman Kurdistan, where the control of the government was more complete. In June 1908, a constitutionalist rebellion in the Ottoman military started. There were connections between this rebellion and the CUP. The rebellion forced Sultan Abdul Hamid II to set up a parliament and a constitutionalist government. The end of Abdul Hamid's autocracy was important for many Kurds living in the capital city, Constantinople. Many of them supported the CUP and the new constitution. A number of Kurdish organizations then started in Constantinople. The Society for Kurdish Mutual-Aid and Progress (SKMP) was in existence from September 1908 until 1909. The Society for the Propagation of Kurdish Education (SPKE) was in existence from 1910 to 1911. The Kurdish Students' Hope Society, however, was in existence from 1912 until the start of World War I.