Simplify the following text for a Grade 10 native English-speaking person.
Original: Religious persecution has taken place at least since the Persecution of early Christians in the Roman Empire , and has happened in completely different historical , geographical and social contexts , but still , some generalizations are necessary . One period of religious persecution which has been studied extensively is early modern England , since the rejection of religious persecution , now common in the Western world , originated there .
Simplified: Religious persecution may occur in the following forms :