Answer:

ISAACNEWTON

AnswerCrossword Clue
ISAACNEWTONHe spent December 25, 1642 being born in Woolsthorpe-by-Colsterworth
ISAACNEWTONMathematician born 12-25-1642
ISAACNEWTONMan of solemn gravity
ISAACNEWTONDiscoverer of a law of physics, 1685.
ISAACNEWTONHe was born Dec. 25, 1642.
ISAACNEWTON"Don't Sit Under the Apple Tree"
ISAACNEWTONCelebrity born Christmas 1642
ISAACNEWTON[Hint] Apple on the head
ISAACNEWTONScientist who experienced a great fall?
ISAACNEWTONIn person?
ISAACNEWTONWho said "Aristotle is my friend - but my greatest friend is truth"
ISAACNEWTONGravity discoverer