On March 3, 1868, Pope Pius IX established the Diocese of Columbus and named the Most Reverend Sylvester Rosecrans as its first bishop. Shortly thereafter, St. Joseph was constructed as the cathedral for the new Diocese. March 3, 2018, marks the sesquicentennial of the Diocese of Columbus, kicking off a year-long celebration of our 150th anniversary! It is a tremendous blessing to commemorate this important milestone in the history of our Diocese. Please join Bishop Frederick F. Campbell in celebrating this important milestone in our Diocese’s history on Sunday, April 22, 2018, 5:15 p.m. at St. Joseph Cathedral, Columbus.