| Answer | Crossword Clue |
|---|---|
| PLANEGEOMETRY | First subject in Euclid's "Elements" |
| PLANEGEOMETRY | Subject in Euclid's "Elements" |
| GNOME | Subject of the first picture in Mussorgsky's "Pictures at an Exhibition" |
| WAS | Word in the first sentence of a Wikipedia article that indicates its subject passed away |
| OTT | Fred ..., whose sneeze was the subject of the first copyrighted movie in the U.S. |
