In the mid-fifth century B.C. Herodotus (1:131; 3.8) mentioned the importance of the cult of Al-Ilât, i.e. Allat, in ancient Arabia. Her sanctuary at Palmyra (Pl. XVII), excavated in the 1970s by the Polish mission, is in the neighborhood of the temple of Baal Shamin and lends a special character to the city's western quarter, in which Arab tribes settled during the second century B.C.
Source: wiktionary