| Answer | Crossword Clue |
|---|---|
| EULER | 18th-century Swiss math great |
| EULER | Giant of 18th-century math |
| EULER | 18th-century Swiss mathematician |
| EULER | Swiss mathematician: 18th century |
| EULER | Noted Swiss mathematician: 18th century |
| CATHERINE | "Great" 18th-century ruler |
