https://www.youtube.com/watch?v=FgID9mjuA9E
TL;DR — Baal was an ancient deity worshipped across various cultures in the Near East and Mediterranean, often associated with storms, fertility, and kingship. His worship, which involved complex rituals and evolved over time, is highlighted in the Quran and biblical traditions as a significant deviation from monotheism, particularly during the time of Prophet Elias (Elijah). The name Baal, meaning 'lord,' was applied to many deities, and its worship persisted through various forms, including its association with demonic figures in occult traditions.
Takeaway — The persistent worship of Baal across millennia, despite its varied forms and eventual identification with demonic entities, serves as a historical example of human deviation from monotheism when disconnected from divine revelation.