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In the fiction of ], the '''Years of the Sun''' are the last of the three great time-periods of ], together with the ] and the ]. They begin with the first sunrise in conjunction with the ] to ], and last until the present day. (The history of the fictional Middle-earth is to be taken fictionally as a history of the real Earth.) The Years of the Sun began towards the end of the ] and continued through the ], ], and part of the ] in Tolkien's stories. Tolkien estimated that we are now living in the sixth or seventh age.