Complex sentence: In 176 Hijri Yehya Ibn Abdulla went to Dailam in Persia and called for rule for himself in place of Harun, many people followed him and he became strong enough to cause unrest for the Abbasids.
Split into simpler sentences: In 176 Hijri Yehya Ibn Abdulla went to Dailam in Persia and called for rule by himself in place of Harun. Many people followed him and he became strong enough to cause unrest for the Abbasids.