Timeline of Arda
Summary
Tolkien revised his chronology numerous times. The Annals of Valinor were written in the early 1930s.

Timeline of Arda

Section Title: Summary
Table Section Text: Tolkien revised his chronology numerous times. The Annals of Valinor were written in the early 1930s.

First Age	450 Years of the Trees + 590 Years of the Sun

Second Age	3,441 Years of the Sun

Third Age	3,021 Years of the Sun

Fourth Age	of unspecified length, suggested as overlapping with Earth's protohistory

Sentence(s)

The Third Age was 3,021 years long.

final_sentence: The Third Age was 3,021 years long.