Q10U1I1N1C3E1N1T1E1N1A1R1Y4
27 points
QUINCENTENARY is validvalid
a five-hundredth anniversary
pertaining to a five-hundredth anniversary / a five-hundredth anniversary, also QUINGENTENARY
a five-hundredth anniversary
pertaining to a five-hundredth anniversary / a five-hundredth anniversary, also QUINGENTENARY