(year 7) Princess Amore becomes the ruler of the Crystal Empire.
(year 12) Celestia and Luna meet Starswirl, who mentors them in magic.
(year 26) Celestia and Luna take over the duties of raising the sun and moon.
(year 30) Celestia and Luna are crowned princesses of Equestria.
(year 39) Celestia and Luna’s castle is built in the Everfree forest.
(year 81) Canterlot is built, largely thanks to the efforts of Mistmane.
(year 87) Scorpan and Tirek travel to Equestria to steal the ponies’ magic. Scorpan becomes friends with the princesses and turns Tirek in after unsuccessfully trying to get him to give up on their plan. Tirek is imprisoned in Tartarus.
(year 89) Rockhoof saves his village from a volcano and joins the Mighty Helm.
(year 90) Flash Magnus uses the Nintitus shield to fend off dragons and save his fellow soldiers.
Somnambula saves Prince Hisan and her home village from an evil Sphinx.
(year 91) Mage Meadowbrook cures an outbreak of Swamp Fever in her village, finds her passion for healing, and becomes a traveling healer.
Flash Magnus and the Royal Legion save a village of griffons from the Dread Storm, despite the high Griffon/Pony tensions of the time.
(year 94) Three sirens invade Equestria, causing and feeding off disharmony. Stygian brings together the Pillars (Starswirl, Mistmane, Rockhoof, Mage Meadowbrook, Flash Magnus, Somnambula) to defeat the Sirens, and they banish them to the human world.
(year 101) Stygian turns into the Pony of Shadows when he gets jealous of the Pillars. The Pillars imprison him and themselves in limbo. Before trapping themselves, they plant a seed infused with their magic that eventually grows into the tree of harmony. (Starswirl is 129 at the time! His life is longer than average due to his power.)
(year 112) Discord comes to Equestria and wreaks chaos. He plants plunderseeds to drain the Tree of Harmony’s magic, but the Tree is powerful enough to keep the seeds at bay. Luna and Celestia find the Elements of Harmony and use them to turn Discord into stone and reverse his chaos.
(year 117) A young blind filly named Snowdrop creates a snowflake and presents it to the princesses. They love it and ask her to make more.
(year 120) King Sombra kills Princess Amore and takes over the Crystal Empire, enslaving most of the Crystal Ponies and killing all the remaining alicorns, seeing them as too much of a threat. Luna and Celestia turn Sombra to shadow and trap him in the arctic ice. But before he was imprisoned, Sombra cursed the Crystal Empire and its population to vanish into thin air.
