The timeline of The Guardians of Childhood and Rise of the Guardians series lacks exact dates, but will strive to list important events in chronological order and use as much information as we have in order to make rough estimations. Historically, the timeline can be separated roughly into three time periods: the Golden Age, during which peace and prosperity reigned throughout the cosmos; the "Guardians of Childhood Age", which was when the first Guardians banded together against Pitch's return; and the "Rise of the Guardians Age", taking place sometime during the present.

The Golden Age

How many years ago the Golden Age existed is unknown.

During the Golden Age, travel between planets and stars was common with the use of airships that would sail the Sea of Stars. The universe was governed by Constellations, groups of planets and stars led by benevolent families that ruled with imagination and fairness. But evil came in the form of Fearlings, Nightmare Men and Dream Pirates, who threatened the peace.

The House of Lunanoff vowed to rid the universe of their evil, so together with the other Constellations they "Built a prison out of lead in the farthermost regions of space." to confine the Fearlings and their ilk. Kozmotis Pitchiner led the Golden Armies in capturing them, then volunteered to keep watch over them. However, he was tricked by the Fearlings and then possessed by them, turning into Pitch, the Nightmare King.[1][2]

His mind, now twisted with thoughts of vengeance, Pitch set out to destroy the Lunanoffs and the Golden Age by turning all good dreams into nightmares. He plundered planets, extinguished stars and scuttled airships, replacing every dream with a nightmare. He hungered for children's dreams the most; and occasionally, he would turn children into Fearlings. After ravaging every outpost, he went after the Constellation Lunanoff, determined to turn their son, who had never had a nightmare, into his Prince of Nightmares.

The Lunanoffs boarded their airship, the Moon Clipper, and set sail for the distant planet of Earth.

One of the many shooting stars Pitch scuttled was the Sandman's, which resulted in him crash-landing on Earth.

Pitch and Nightlight were imprisoned sometime before the emergence of the Lunar Lamas during or before the time of Atlantis.[3] This would therefore place their imprisonment sometime before or after 9,600 B.C. which is, presumably, around the time Atlantis existed as a strong naval power.[4]

The Guardians of Childhood Age

Since Bunnymund will "secretly help the credited inventors" of the train "some decades later",[5] the following events take place somewhere between the late 1700s to early 1800s.

The Rise of the Guardians Age

This age is roughly 200[6][7] to 300 years[8] after the previous age, set some point during the present.