| 100% | HERTZ | 5 | First person to broadcast radio waves |
| 47% | PIONEER | 7 | First person to explore somewhere |
| 47% | ALIST | 5 | First people to get invited |
| 46% | GAGARIN | 7 | First person to travel to space |
| 46% | YEAGER | 6 | First person to break Mach 1 |
| 46% | TESTPILOT | 9 | First person to fly a plane |
| 46% | GAGARIN | 7 | First person to orbit the Earth |
| 46% | ABEL | 4 | First person to die in the Bible |
| 46% | ARMSTRONG | 9 | First person to walk on the moon |
| 46% | MARIECURIE | 10 | First person to receive two Nobel Prizes |
| 45% | ABEL | 4 | First person to die, according to the Bible |
| 45% | NEIL | 4 | First person to walk on the moon, Armstrong |
| 45% | JOHNYOUNG | 9 | First person to fly solo around the Moon |
| 45% | EDITORS | 7 | The first people to play crosswords |
| 44% | GALILEO | 7 | First person to use a telescope to study space |
| 44% | BFF | 3 | First person to hear about your latest crush, maybe |
| 44% | ERICBANA | 8 | First person to play the Hulk in the 2000s |
| 44% | WILEYPOST | 9 | First person to fly solo around the world (1933) |
| 43% | NEILARMSTRONG | 13 | First person to walk on the moon (1969): 2 wds. |
| 43% | CHRISTIAANBARNYARD | 18 | First person to perform a heart transplant on a chicken? |
| 43% | NEIL | 4 | ___ Armstrong, first person to walk on the moon |
| 43% | FUSSELL | 7 | Jacob __; first person to mass produce ice cream |
| 43% | ARMSTRONG | 9 | Neil, the first person to walk on the moon |
| 43% | ALEKSEI | 7 | Cosmonaut Leonov, the first person to conduct a spacewalk |
| 43% | ARMSTRONG | 9 | Neil, the first person to step on the moon |
| 43% | WHYMPER | 7 | Edward —, first person to climb Alpine mountain the Matterhorn |
| 42% | CBS | 3 | First network to broadcast in color (1951) |
| 42% | DEAN | 4 | First person to receive a posthumous Academy Award for Best Actor nomination |
| 42% | LUISE | 5 | ___ Rainer, the first person to win back-to-back Oscars |
| 42% | COHERER | 7 | Device used to detect radio waves |