Complex sentence: In 843 Emperor Wuzong of Tang gave the order to kill all Manichaean clerics as part of his campaign against Buddhism and other religions, and over half died.Their heads were shaved, they were made to dress like Buddhist monks and then killed.
Split into simpler sentences: In 843 Emperor Wuzong of Tang gave the order to kill all Manichaean clerics as part of his campaign against Buddhism and other religions, and over half died. They were made to look like Buddhists by the authorities, their heads were shaved, they were made to dress like Buddhist monks and then killed.