Simplify the following text for a Grade 10 native English-speaking person.
Original: Monophysitism 's theological point of view is also rejected by the Oriental Orthodox Churches , but was widely accepted in Syria , Egypt and the Levant , leading to many tensions in the Coptic period of the Byzantine Empire .
Simplified: Monophysitism is also rejected by the Oriental Orthodox Churches , but was widely accepted in Syria , the Levant , and Egypt . This caused many tensions in the early days of the Byzantine Empire .