That book was a copy, made at the request of King Elessar, of the Red Book of the Periannath, and was brought to him by the Thain Peregrin when he retired to Gondor in IV 64.This is quite correct according to the usage of Gondor, where Fo.A. 64 began in March of S.R. 1484, and so was current when in the autumn of S.R. 1484 King ??omer died, and subsequently Meriadoc and Peregrin went to Gondor.