Complex sentence: It is since 1940 that the eastern shore of Sebkha Séjoumi has welcomed the first rural migrants.The factors that trigger this installation are the proximity of the medina and the legal status of the lands most of which are attached to the habous.
Split into simpler sentences: It is since 1940s that the eastern shore of Sebkha Sejoumi has welcomed the first rural migrants. Factors that triggered this installation are the proximity of the medina and the legal status of the lands most of which are attached to the habous.