[custom_adv] Despite his vow to act as a constitutional monarch who would defer to the power of the parliamentary government, Mohammad Reza Shah increasingly involved himself in governmental affairs and opposed or thwarted strong prime ministers. [custom_adv] Prone to indecision, however, Mohammad Reza relied more on manipulation than on leadership. He concentrated on reviving the army and ensuring that it would remain under royal control as the monarchy's main power base. [custom_adv] In 1949 an assassination attempt on the Shah, attributed to the pro-Soviet Tudeh Party, resulted in the banning of that party and the expansion of the Shah's constitutional powers. [custom_adv] In the context of regional turmoil and the Cold War, the Shah established himself as an indispensable ally of the West. Domestically, he advocated reform policies, culminating in the 1963 program known as the White Revolution, which included land reform, the extension of voting rights to women, and the elimination of illiteracy. [custom_adv] These measures provoked religious leaders, who feared losing their traditional authority, to raise their voices against him, which consequently led to some civil unrest. [custom_adv] And the increasing arbitrariness of the Shah’s rule caused more provocation among the intellectuals, who seeking democratic reforms. These opponents criticized the Shah for subservience to the United States and for violation of the constitution, which placed limits on royal power and provided for a representative government. [custom_adv] The Shah saw himself as heir to the kings of ancient Iran, and in 1971 he held an extravagant celebration of 2,500 years of Persian monarchy. In 1976 he replaced the Islamic calendar with an "imperial" calendar, which began with the foundation of the Persian Empire more than 25 centuries earlier. These actions were viewed as anti-Islamic and resulted in religious opposition. [custom_adv] The shah's regime suppressed and marginalized its opponents with the help of Iran's security and intelligence organization, the SAVAK. Relying on oil revenues, which sharply increased in late 1973, the Shah pursued his goal of developing Iran as a mighty regional power dedicated to social reform and economic development. [custom_adv] Yet he continually sidestepped democratic arrangements, remaining unresponsive to public opinion and refused to allow meaningful political liberties. [custom_adv] By the mid-1970s the Shah reigned amidst widespread discontent caused by the continuing repressiveness of his regime, socioeconomic changes that benefited some classes at the expense of others, and the increasing gap between the ruling elite and the disaffected populace. [custom_adv] Islamic leaders, particularly the exiled cleric Ayatollah Khomeini, were able to focus this discontent with a populist ideology tied to Islamic principles and calls for the overthrow of the shah. [custom_adv] The Shah's government collapsed following widespread uprisings in 1978 and 1979. The Pahlavi Dynasty was succeeded by an Islamic government under Ayatollah Khomeini. [custom_adv] The growing social awareness of civil rights resulted in the Constitutional Revolution and the first constitution of Iran in 1906. On June 2, 1907, the parliament passed a law on local governance known as the Baladie (municipal law), providing a detailed outline on issues such as the role of councils within the city, the members' qualifications, the election process, and the requirements to be entitled to vote. [custom_adv] The then Qajar monarch Mohammad Ali Shah abolished the constitution and bombarded the parliament with the help of the Russian-controlled Cossack Brigade on June 23, 1908. [custom_adv] That followed the capture of the city by the revolutionary forces of Ali-Qoli Khan (Sardar Asad II) and Mohammad Vali Khan (Sepahsalar e Tonekaboni) on July 13, 1909. As a result, the monarch was exiled and replaced with his son Ahmad, and the parliament was re-established. [custom_adv] After World War I, the constituent assembly elected Reza Shah of the Pahlavi dynasty as the new monarch, who immediately suspended the Baladie law of 1907, replacing the decentralized and autonomous city councils with centralist approaches of governance and planning. [custom_adv] From the 1920s to the 1930s, under the rule of Reza Shah, the city was essentially rebuilt from scratch. That followed a systematic demolition of several old buildings, including parts of the Golestan Palace, Tekye Dowlat, and Tupkhane Square, which were replaced with modern buildings influenced by classical Iranian architecture, particularly the building of the National Bank, the Police Headquarters, the Telegraph Office, and the Military Academy. [custom_adv] The changes in urban fabric started with the street-widening act of 1933, which served as a framework for changes in all other cities. The Grand Bazaar was divided in half and many historic buildings were demolished to be replaced with wide straight avenues. [custom_adv] As a result, the traditional texture of the city was replaced with intersecting cruciform streets that created large roundabouts, located on major public spaces such as the bazaar. [custom_adv] As an attempt to create a network for easy transportation within the city, the old citadel and city walls were demolished in 1937, replaced by wide streets cutting through the urban fabric. The new city map of Tehran in 1937 was heavily influenced by modernist planning patterns of zoning and gridiron networks. [custom_adv] During World War II, Soviet and British troops entered the city. In 1943, Tehran was the site of the Tehran Conference, attended by U.S. President Franklin D. Roosevelt, Soviet Premier Joseph Stalin, and British Prime Minister Winston Churchill.