- Omar, a Persian astronomer, suggested a reformation of the calendar which, if it had been adopted, would have insured greater accuracy than can be attained by the Gregorian style now in use. - "The Astronomy of Milton's 'Paradise Lost'", Thomas Orchard.
- It was the voice of Jeekie, and he did not speak, he chanted in English to a melody which Alan at once recognized as a Gregorian tone, apparently from the second litter. - "The Yellow God An Idol of Africa", H. Rider Haggard.
- That edifice was the Collegio Romano; the Gregorian University was in the same street, but further on, opposite the Post Office Department. - "CÃ¦sar or Nothing", PÃo Baroja Baroja.