| 100% | SOLIDARITY | 10 | Union instrumental in Poland's first post-1947 pluralistic election in 1989 |
| 32% | SOLIDARITY | 10 | Organisation of free trade unions in Poland that led the government in 1989 |
| 29% | BOY | 3 | Game ___, Nintendo's handheld game console first released in 1989 |
| 29% | ERA | 3 | Short form of bill S.1774 which, in part, would require secret ballot elections to determine union representation |
| 28% | BALLOTBOX | 9 | Container in which votes are posted at an election |
| 28% | RAP | 3 | Music genre first honored at the Grammys in 1989 |
| 26% | DENMARK | 7 | Copenhagen's country which was the first country to legally recognize registered same-sex couples in 1989 |
| 26% | LARGO | 5 | Key that got its first post office in 1870 |
| 26% | MELBOURNE | 9 | 1956 Olympics site, the first in the S hemisphere |
| 25% | STRATEGIC | 9 | First S in OSS, precursor of CIA |
| 25% | SOVIET | 6 | The first S in USSR |
| 25% | GERTYCORI | 9 | First woman awarded Nobel in Medicine in 1947 |
| 25% | FRUITFLY | 8 | First living creature sent into Space, in 1947 |
| 24% | GATT | 4 | Intl. commercial agreement first signed in 1947 |
| 24% | SELF | 4 | The first "S" in S.A.S.E. |
| 24% | SOV | 3 | The first "S" in S.S.R.: Abbr. |
| 24% | SOVIET | 6 | What the first S in USSR stood for |
| 24% | SOVIET | 6 | What the first S stood for in USSR |
| 24% | VIRGINIABEACH | 13 | City in "America's First Region" |
| 24% | ATREST | 6 | Words in Newton's first law |
| 24% | INERTIA | 7 | Concept in Newton's first law |
| 24% | INERTIA | 7 | Principle in Newton's first law |
| 24% | MAINE | 5 | First state to use ranked-choice voting in a presidential election |
| 23% | WARSAWCOMPACT | 13 | Small car manufactured in Poland’s capital? |
| 23% | ASTRO | 5 | Player in MLB's first domed stadium |
| 23% | ICH | 3 | First-person pronoun in Chaucer's day |
| 23% | TONY | 4 | ___ Awards, Broadway awards with the first edition held in 1947 |
| 23% | JENNINGS | 8 | He hosted the first "Jeopardy!" in the post-Trebek era |
| 23% | THEPURSUED | 10 | 1935 novel by C S Forester first published in 2011 |