Simplify the following text for a Grade 8 native English-speaking person.
Original: Saint Stephen ( Koine Greek : Î # Ï Î Ï Î Î 1\/2 Î Ï , Stephanos ) , the protomartyr of Christianity , is venerated as a saint in the Roman Catholic , Anglican , Lutheran , Oriental Orthodox and Eastern Orthodox Churches .
Simplified: Saint Stephen ( Greek : Î # Ï Î Ï Î Î 1\/2 Î Ï \/ Stephanos ) is known as the first martyr of Christianity .