Complex sentence: However, the authorities in England were stubborn, and due to the pressure they exerted, the monopoly of tobacco and betel nut was stopped on 1 September 1767, followed by the annulment of the salt monopoly on 7 October 1768.
Split into simpler sentences: However, the authorities in England were stubborn and due to the pressure they exerted, the monopoly of tobacco and betel nut was stopped on 1 September 1767. This was followed by the annulment of the monopoly of salt on 7 October 1768.