| Jerry Lewis telethon org., for years | 36 |
| Jerry Lewis telethon org. | 25 |
| Jerry Lewis hosts its telethons annually: Abbr. | 47 |
| XL squared | 10 |
| 1600, to Caesar | 15 |
| Year in Elizabeth I's reign | 31 |
| 1600, to Cato | 13 |
| Year in Pope Clement VIII's era | 35 |
| Year "As You Like It" debuted | 39 |
| Pennsylvania Ave. address, to Julius | 36 |
| Four CD's | 13 |
| End of the 16th century | 23 |
| CLX x X | 7 |
| Caesar's 1600 | 17 |
| 17th-century date | 17 |
| 16th century's end | 22 |
| 1600, in old Rome | 17 |
| 1700, on cornerstones | 21 |
| Year that Clement XI became pope | 32 |
| Year John Dryden died | 21 |
| Year Dryden died | 16 |
| When Philip V became king | 25 |
| Start of the reign of Philip V of Spain | 39 |
| L x XXXIV | 9 |
| 17th century's end | 22 |
| 1700, inscribed | 15 |
| 1700 | 4 |
| Ovid's 1,650 | 16 |
| Nell Gwyn's birth year | 26 |
| 1650, to Caesar | 15 |
| 1650, in Roman numerals | 23 |
| Nine yrs. before the Mayflower landed | 37 |
| Start of the 16th century | 25 |
| Roman 1051 | 10 |
| Year in Luther's time | 25 |
| Roman 1501 | 10 |
| Early 16th-century date | 23 |
| Year in Henry VII's reign | 29 |
| Early 16th C. date | 18 |
| 1501, in Roman numerals | 23 |
| 1501 in Roma | 12 |
| Year that Michelangelo began work on "David" | 54 |
| Year Michelangelo began work on "David" | 49 |
| Nero's 1,501 | 16 |
| 16th-century start | 18 |
| 1501, on a monument | 19 |
| 1501, in old Europe | 19 |
| 1,501, Roman-style | 18 |
| Year Vespucci sailed to the New World | 37 |
| Year Vespucci sailed | 20 |
| Year that Michelangelo sculpted the "Pietà " | 56 |
| Year of an Amerigo Vespucci voyage | 34 |
| Year Michelangelo began "David" | 41 |
| Year in which Michelangelo began work on "David" | 58 |
| Year in which Martin Luther first entered university | 52 |
| Year in Pope Alexander VI's reign | 37 |
| Year in Ivan the Great's rule | 33 |
| Year in an Amerigo Vespucci voyage | 34 |
| Year in a voyage by Amerigo Vespucci | 36 |
| Year before which books known as incunabula were printed | 56 |
| Year before Columbus's fourth voyage | 40 |
| When Michelangelo started "David" | 43 |
| When Luther was 18 | 18 |
| The year 1501 | 13 |
| Start of the XVIth century | 26 |
| Roman 1,501 | 11 |
| Ovid's 1,501 | 16 |
| Nero's 1501 | 15 |
| Late Middle Ages date | 21 |
| IX years after Columbus's voyage | 36 |
| First year of the 16th century | 30 |
| CM + DCI | 8 |
| Century-starting year | 21 |
| Century opening | 15 |
| 475% of CCCXVI | 14 |
| 16th-century opener | 19 |
| 1501, to Nero | 13 |
| 1501, to Caesar | 15 |
| 1501, in ancient Rome | 21 |
| 1,501, another way | 18 |
| (LXXX - I) x (XX - I) | 21 |
| 16th-century date | 17 |
| DCCLI doubled | 13 |
| DCCLI x II | 10 |
| Date of Columbus's last voyage | 34 |
| 1502, on monuments | 18 |
| Year of Columbus's fourth voyage | 36 |
| Twice DCCLI | 11 |
| 1502, to Caesar | 15 |
| 1,502, in a way | 15 |
| Year when Columbus named Honduras | 33 |
| Year of fourth voyage of Columbus | 33 |
| Year of Columbus's last voyage | 34 |
| Year of Columbus's last trip to the New World | 49 |
| Year in which Columbus began his last voyage | 44 |
| Year in Louis XII's reign | 29 |
| Year Columbus began his fourth voyage | 37 |
| Wittenberg University's founding date | 41 |
| When Columbus made his last voyage | 34 |
| Roman 1502 | 10 |