The term Palestinian refers to an admixture of several ethno/linguistic groups from Asia, Africa, the Middle East, and Europe who emigrated to the geographical region of Palestine during the 19th and 20th centuries.
The term came into modern usage in the English speaking world by creation of the Palestinian Mandate in 1919, and has no native origins among residents of the geographic region. Jews at the time of the British Mandate of Palestine were also classified as "Palestinian".
Since 1948 the term generally has come to refer mostly to ethnic Arabs, who originated from other Middle Eastern countries. Some seek to create a state in parts or all of the geographic region. Those advocating the latter view often advocate the destruction of the state of Israel. Most reside in Gaza, the West Bank, or Jordan. The King of Jordan has refused to grant citizenship to Arab refugees from "Palestine", in part due to political pressure from other Islamic countries.
Over 100,000 or at least 150,000 (to some estimates, such as the testimony given in the U.S. Congress in 1939) immigrated during the British Mandate as job seekers due to the prosperity Zionists brought to a barren land after several millennia. Immigrants included Arab - Egyptians Syrian, Algerian, Sudanese, and South Arabians. At least 50,000 or more immigrated from Hauran, Syria alone. Other Muslims from Bosnia during the and fascist Nazi Slavic-Muslims after World War II.
So-called "Palestinians," who, up to the 1960s were referred to as South Syrians prior to the 1920s, later as 'Arabs" or more specifically Palestine Arabs, since the late 1960s have adopted this moniker and comprise a mixture of: Syrian Arabs, Saudi Arabs, Sudanese [Afro-]Arabs, Egyptian, Turkish, Kurdish, Bosnian, Algerian and others (which explains their surnames - telling of their origin/original land). Yet, this 'mixture' was never cohesive, nor did it ever before consider itself as a "nation."
- after the French removed Emir Faisal, from Damascus in 1920.