On September 1, 1920, General Gouraud proclaimed the establishment of Greater Lebanon with its present boundaries and with Beirut as its capital. The first Lebanese constitution was promulgated on May 23, 1926, and subsequently amended several times; it was still in effect as of late 1987. Modeled after that of the French Third Republic, it provided for a unicameral parliament called the Chamber of Deputies, a president, and a Council of Ministers, or cabinet. The president was to be elected by the Chamber of Deputies for one six-year term and could not be reelected until a six-year period had elapsed; deputies were to be popularly elected along confessional lines. The first and only complete census that had been held in Lebanon as of 1987 took place in 1932 and resulted in the custom of selecting major political officers according to the proportion of the principal sects in the population (see The Basis of Government , ch. 4). Thus, the president was to be a Maronite Christian, the prime minister a Sunni Muslim, and the speaker of the Chamber of Deputies a Shia Muslim. Theoretically, the Chamber of Deputies performed the legislative function, but in fact bills were prepared by the executive and submitted to the Chamber of Deputies, which passed them virtually without exception. Under the Constitution, the French high commissioner still exercised supreme power, an arrangement that initially brought objections from the Lebanese nationalists. Nevertheless, Charles Dabbas, a Greek Orthodox, was elected the first president of Lebanon three days after the adoption of the Constitution.

At the end of Dabbas's first term in 1932, Bishara al Khuri (also cited as Khoury) and Emile Iddi (also cited as Edde) competed for the office of president, thus dividing the Chamber of Deputies. To break the deadlock, some deputies suggested Shaykh Muhammad al Jisr, who was chairman of the Council of Ministers and the Muslim leader of Tripoli, as a compromise candidate. However, French high commissioner Henri Ponsot suspended the constitution on May 9, 1932, and extended the term of Dabbas for one year; in this way he prevented the election of a Muslim as president. Dissatisfied with Ponsot's conduct, the French authorities replaced him with Comte Damien de Martel, who, on January 30, 1934, appointed Habib as Saad as president for a one-year term (later extended for an additional year).

Emile Iddi was elected president on January 30, 1936. A year later, he partially reestablished the Constitution of 1926 and proceeded to hold elections for the Chamber of Deputies. However, the Constitution was again suspended by the French high commissioner in September 1939, at the outbreak of World War II.

Data as of December 1987