Complex sentence: In September, 1927, the Catholic Church municipality celebrated its 1,600th anniversary; in 1937 Pope Pius XI granted the right for the cathedral of "St. Viktor" to be called a Basilica minor.
Split into simpler sentences: In September, 1927, the Catholic Church municipality celebrated its 1,600th anniversary. In 1937, Pope Pius XI granted the right for the cathedral of "St. Viktor" to be called a Basilica minor.