Complex sentence: The Old Permic script, sometimes called Abur, is an original ancient Permic writing system introduced by a Russian missionary Stepan Khrap, also known as Saint Stephen of Perm (Степан Храп, св. Стефан Пермский) in 1372.
Split into simpler sentences: The Old Permic script, sometimes called Abur, is an original ancient Permic writing system. The alphabet was introduced by a Russian missionary Stepan Khrap, also known as Saint Stephen of Perm (Степан Храп, св. Стефан Пермский) in 1372.