| 1777 Philadelphia-area battle site | 34 |
| 1777 Revolutionary War battle site | 34 |
| 1777-'78 Continental Army campsite | 38 |
| 1777-'78 military camp site | 31 |
| 1777-78 Continental Army encampment | 35 |
| 1778 epistolary novel by Frances Burney | 39 |
| 1778 visitor to Hawaii | 22 |
| 1780 battle site | 16 |
| 1781 discovery | 14 |
| 1781 Mozart premiere | 20 |
| 1781 surrender site | 19 |
| 1785 invention of England's Edmund Cartwright | 49 |
| 1786 erupter | 12 |
| 1786 rebellion's eponym | 27 |
| 1786 Springfield insurrectionist | 32 |
| 1788 stop for the Bounty | 24 |
| 1789 storm site | 15 |
| 1790s clash that almost led to a U.S.-French war | 48 |
| 1790s diplomatic powder keg | 27 |
| 1791 addition | 13 |
| 1791 legislation | 16 |
| 1794 patent awardee Whitney | 27 |
| 1796 Napoleon battle site | 25 |
| 1796 Napoleonic battle site | 27 |
| 1797-8 to-do | 12 |
| 1798 battleground | 17 |
| 1799 discovery that made possible the decipherment of Egyptian hieroglyphics | 76 |
| 1799 Egyptian discovery | 23 |
| 17th c. Dutch painter | 21 |
| 17th C. stringed instruments | 28 |
| 17th century British philosopher | 32 |
| 17th century court dance | 24 |
| 17th century Dutch painter Jan | 30 |
| 17th century French playwright | 30 |
| 17th century Seneca foes | 24 |
| 17th century's end | 22 |
| 17th chapter | 12 |
| 17th Greek letter | 17 |
| 17th Hebrew letter | 18 |
| 17th letter of the Greek alphabet | 33 |
| 17th letters of an alphabet | 27 |
| 17th of 50 | 10 |
| 17th state | 10 |
| 17th-18th century British poet Nicholas | 39 |
| 17th-C. French explorer | 23 |
| 17th-century actress Nell | 25 |
| 17th-century actress Nell who was Charles II's mistress | 59 |
| 17th-century anti-witch application? | 36 |
| 17th-century artist, perhaps | 28 |
| 17th-century artistic style | 27 |
| 17th-century Baroque sculptor | 29 |
| 17th-century composer Henry | 27 |
| 17th-century conflict | 21 |
| 17th-century court dance | 24 |
| 17th-century date | 17 |
| 17th-century diarist | 20 |
| 17th-century diarist Samuel | 27 |
| 17th-century dramatist | 22 |
| 17th-century Dutch painter | 26 |
| 17th-century Dutch philosopher who wrote "Ethics" | 59 |
| 17th-century English diarist Samuel | 35 |
| 17th-century explorer | 21 |
| 17th-century French dramatist | 29 |
| 17th-century London theatre | 27 |
| 17th-century neckwear | 21 |
| 17th-century New England settler | 32 |
| 17th-century opener | 19 |
| 17th-century painter Jan | 24 |
| 17th-century painter of "Lady With a Fan" | 51 |
| 17th-century poet Francis ___ | 29 |
| 17th-century poet Sor ___ Inés de la Cruz | 44 |
| 17th-century pope | 17 |
| 17th-century pope who died 27 days into his reign | 49 |
| 17th-century purchase | 21 |
| 17th-century Quaker martyr | 26 |
| 17th-century rationalist | 24 |
| 17th-century sea menace | 23 |
| 17th-century Spanish painter of religious scenes | 48 |
| 17th-century theology | 21 |
| 17th-century year when Henry Hudson entered his bay | 51 |
| 17th/18th-century division of New France | 40 |
| 18 - 21 | 7 |
| 18 dogleg holes? | 16 |
| 18 holes, e.g. | 14 |
| 18 holes, for example | 21 |
| 18 holes, generally | 19 |
| 18 holes, say | 13 |
| 18 inches, give or take | 23 |
| 18 Louises | 10 |
| 18 mgs. of iron, e.g. | 21 |
| 18 minutes of a TV hour, typically | 34 |
| 18 of 38 roulette numbers | 25 |
| 18 on a golf course | 19 |
| 18 or 21 | 8 |
| 18 or 21, typically | 19 |
| 18 or 21, usually | 17 |
| 18 oz., maybe, on a cereal box | 30 |
| 18 through 20, in a run | 23 |
| 18 to 20 in a sequence | 22 |
| 18 wheeler | 10 |