Years 2001-3001 AE.

=== 21st Century AE ===
 * 2056: The [[Catastrophe]] began. [[GMChronology]]
 * 2071: Typical year for beginning of the [[Dark Age]]

=== 22nd Century AE ===
 * Nadir of the Dark Age generally considered by historians to have occurred in this century.
 * 2101: Reopening of the [[Eastern Ponyland University]]
 * 2121-2123: The [[New Volcano]] first appeared. 

=== 23rd Century AE ===
 * Isle of Yore dominated by warlordism.
 * 2244: The one-off ''Fugitives From Unicornia'' takes place.
 * 2265: [[Ironbound]] one-off campaign takes place. The earth-unicorn warlord Iron Horn of Calkin is critically injured and never fully recovers.
 * ca. 2270s continuing fall of the oceans leads to expansion of the lowlands.

=== 24th Century AE ===
 * General expansion of camels from Ponyland into the lowlands.
 * Relatively stable feudal civilization emerged among upland peoples on the Isle of Yore, scarcity-driven conflict still fairly common between feudal powers and confederacies.

=== 25th Century AE ===
 * 2496: The oceans ceased to fall, according to the records of the hermit sage [[Lonepone|Lonepone of the Dusts]]

=== 26th Century AE ===
 * Nothing noted yet.

=== 27th Century AE ===
 * Earliest definite evidence of the dynasty of Duchess [[Aflori]] in the [[Hayminnow Islands]].
 * 2638: The lighthouse ruins in [[Old Light]] collapse.
 * 2670s: Camel Wars with lowland nomadic tribes trying to conquer the Isle of Yore. They are eventually defeated, and the alliance of feudal lords that defeated them ushers in a period of relative peace.

=== 28th Century AE ===
 * Development of the [[Irrigation]] system on the [[Isle of Yore]] begins in earnest during a period of relative peace.

=== 29th Century AE ===
 * 2817: Last eruption of the [[Yellow Mountain]] on the [[Isle of Stonepipes]]
 * 2835: Fall of the [[Wizard-Prince|Cloister]] of [[New Canterlot]]

=== 30th Century AE ===
 * 2921: The aquifer of the [[Valley of Yore]] fails suddenly.
 * 2936: the [[Edge]] founded.
 * 2940-2955: [[Crystal Forest]] growth destroys the [[Valley of Yore]] and [[Mulephis]] is cut off from the [[Eastern Dusts]]
 * 2950s: last [[Great Famine|great famine]] (thusfar) begins (due to the loss of the Valley of Yore's agricultural output.)
 * 2950: Founding of [[Penna Plain]]