The life and political activism of Messali Hadj (1898-1974), an Algerian internationalist politician who played a pioneering role in the process leading to Algerian independence, which he demanded as early as 1927. He was initially secretary of the North African Star (ENA), then in 1937 he founded the Algerian People's Party (PPA), in 1946 he founded the Movement for the Triumph of Democratic Liberties (MTLD), and finally in 1954, the Algerian National Movement (MNA). In 1937, the leadership of the North African Star (ENA) created its flag, green with a white star and crescent. Messali Hadj's wife, Emilie Busquant-Messali, simply sewed this ENA flag by machine; it would later become the flag of the PPA. In 1943, Messali Hadj, in conjunction with the party leadership, created the ENA-PPA flag, green and white with a red star and crescent, which would later become the current flag of the People's Democratic Republic of Algeria.

Emilie Busquant, a woman with an exceptional destiny, was born on March 3, 1901, in Neuves-Maisons, Lorraine. In 1923, she moved to Paris to find work and met Messali Hadj, who had also come seeking employment. A beautiful love story began; she fell in love with both a man and a cause: the independence of Algeria. Together, in 1926, they founded the first Algerian independence party, the North African Star (Étoile Nord-Africaine). She would support the Algerian people's struggle throughout her life.