Complex sentence: In 1285, the Muslim scholar Ibn Taymiyya started teaching Qur'an exegesis in the mosque and when the Il-Khan Mongols under Ghazan invaded the city in 1300, Ibn Taymiyya preached "jihad", urging the citizens of Damascus to resist their occupation.
Split into simpler sentences: In 1285, the Muslim scholar Ibn Taymiyya started teaching Qur'an exegesis in the mosque. When the Il-Khan Mongols under Ghazan invaded the city in 1300, Ibn Taymiyya preached "jihad", urging the citizens of Damascus to resist their occupation.