| 100% | WORD | 4 | The first one in this clue is "The" |
| 72% | ATOMICPILE | 10 | The first one of these was built by Fermi and his team in 1942 |
| 72% | LASTWORD | 8 | "Clue" is the one in this clue |
| 69% | OLYMPIC | 7 | The first modern one of these games was in Greece |
| 67% | VCR | 3 | The first commercial one of these was introduced by Ampex in 1956 and cost roughly $50,000 |
| 67% | JET | 3 | The Lippisch Ente was the first one of these to fly, in 1928 |
| 66% | VERBOSE | 7 | Denoting the style in which one might consider this clue to be written |
| 65% | PROGRESS | 8 | The first step in this is discontent |
| 64% | ALMANAC | 7 | The first one printed in America was in 1639 |
| 64% | DOG | 3 | President Trump is the first president in over 100 years not to have one of these |
| 63% | TYPO | 4 | Mistaek such as the one in this clue |
| 63% | ATM | 3 | Installation of October 1997 in Canada's capital was the world's first talking one of these |
| 62% | TEDTALK | 7 | The first one was delivered in 1984 |
| 62% | EMAIL | 5 | The first one was sent in 1971 |
| 62% | NERO | 4 | The one Roman emperor hidden in this clue |
| 62% | ENG | 3 | The language this clue is written in: Abbr. |
| 62% | BROWSERWAR | 10 | Navigator was in the first one |
| 61% | EDGE | 4 | The answer to this clue is located on one |
| 61% | SSN | 3 | The first one was issued in 1936, for short |
| 59% | MOTEL | 5 | The first one was built in 1925 in San Luis Obispo, Calif. |
| 59% | PETE | 4 | Trumpeter Minger (whose first name is hidden in this clue) |
| 59% | THEOTHERAMERICA | 15 | Read the first letter in each clue to get a quote from this '67 speech |
| 59% | MBA | 3 | The program for obtaining this degree was first established at Harvard in 1908 |
| 58% | ELEVEN | 6 | The number of clues in this puzzle minus one |
| 58% | ALPHABETICORDER | 15 | Puzzler's alert: the clues in this crossword are all in this |
| 58% | HAIKUS | 6 | Japanese poems / like the one used in this clue / a beautiful hint |
| 58% | ISP | 3 | "The World" in Mass. was the first commercial one, in '89 |
| 58% | COLUMN | 6 | This answer is in the third one of this puzzle |
| 58% | OLYMPICS | 8 | The first modern one was held in Athens in 1896 |
| 58% | WHOSTHERE | 9 | This two-word phrase is the first line in Hamlet |