Complex sentence: Doubts about the historicity of Catherine have been raised by modern scholars, and in 1969 the Catholic Church removed her feast day from the General Roman Calendar, but it was restored as an optional memorial date in 2002.
Split into simpler sentences: Doubts about the historicity of Catherine have been raised by modern scholars. In 1969 the Catholic Church removed her feast day from the General Roman Calendar, but it was restored as an optional memorial date in 2002.