1. Perishing Arabs: The ancient Arabs, of whose history little is known, and of whom were ‘Ad, Tham? , Tasam, Jadis, Emlaq, and others.
2. Pure Arabs: Who originated from the progeny of Ya‘rub bin Yashjub bin Qahtan. They were also called Qahtanian Arabs.
3. Arabized Arabs: Who originated from the progeny of Ishmael. They were also called ‘Adnanian Arabs.
