Enter a clue or pattern or both:
The Clue
2007 for Jamestown (15 letter answer)
The Answer
QUATERCENTENARY
Tags
Notes
The answer QUATERCENTENARY is so rare that it appears less than once every 2500 puzzles.
Definition
QUATERCENTENARY as a noun:
1. (quatercentennial, quatercentenary) = the 400th anniversary (or the celebration of it)