1. The Catholic Bible contains seven additional books in the Old Testament not found in Protestant Bibles.

2. The pope is elected by a secret conclave of the world's cardinals who are younger than eighty years of age.

3. St. Thomas Aquinas, one of the most brilliant scholars in all history, was referred to as the “Dumb Ox” because of his great size and humility.

4. Pope Julius II was both a warrior and a patron of the arts. He was the one who commissioned Michelangelo to paint the ceiling of the Sistine Chapel.

5. St. Anthony of Padua is the patron saint of those looking for lost items.

6. Marriage is the only one of the seven sacraments in which the minister performing the rite is not the priest or bishop; the bride and groom are the ministers of the sacrament.

7. Between 1409 and 1415 there were actually three popes reigning at the same time: one in Pisa, a second one in Avignon, and the third in Rome. This period was known as the Great Western Schism.

8. The dogma of papal infallibility has been invoked only once since it was proclaimed at the Vatican I in 1870. The occasion was the definition of the Assumption of Mary into heaven by Pope Pius XII in 1950.

9. Elizabeth Ann Seton was the first United States–born canonized saint.

10. Since 1850 Catholics have represented the largest single religious denomination in the United States. Today Catholics represent approximately 23 percent of the population.