The common calendar throughout Faerûn is Dale Reckoning.
1DR: The Year of Sunrise, the Dalelands humans and the elves of Cormanthor established an alliance, they raised an obelisk known as the Standing Stone and signed the Dales Compact.
While various histories of Toril and Faerûn go back some 35,000 years prior to the start of Dale Reckoning, the timeline presented here will cover far more recent events.
1358DR: The Year of Shadows & The Time of Troubles, Lord Ao, the overgod, punishes all other gods by casting them down into the realms to walk amongst the mortals until the Tablets of Fate are found and returned. Magic changes and gods rise and fall.
1385DR: The Year of Blue Fire & The Spellplague, thought to be caused by the death/murder of Mystra, goddess of magic, blue fire engulfed much of the land and magic became unpredictable and dangerous. Toril's twin world of Abeir was also affected and parts of each world switched places with one another, bringing the Dragonborn from Abeir and the Shadar-Kai from the Shadowfell, and creating great rifts in the earth as well as floating islands known as earthmotes. Some such rifts opened beneath the Sea of Fallen Stars, causing the water level to drop and many ports to be cut off from their livelihoods.
1395DR: The Year of Silent Death & The end of The Spellplague, most of the effects of the Spellplague have come to an end during this year, though some lands still affected remain, known as Plaguelands. Toril and Abeir are still entangled and show the ravages of The Spellplague.
1482DR: The Year of the Narthex Murders & The Second Sundering, rumours grow of an impending cataclysm and "Chosen" of some of the gods walk the lands gathering support for their gods and preparing for the events to come.
1484DR: The Year of the Awakened Sleepers, most of the gods have created many Chosen from among the mortals, and appear to be gathering as much power and influence as they can. The Sembian armies of the Netheril march on the Dalelands and Cormyr withdraws it's influence from the Dragon Coast cities of Proskur and Teziir, in order to shore up is borders north of the Dragonmere.
1485DR: The Year of the Iron Dwarf's Vengeance, Towards the end of this year, and event known as the "Great Rain" began, and rain started to fall continuously around the Sea of Fallen Stars.
1486DR: The Year of the Nether Mountain Scrolls, the Great Rain continued for a full year and caused the waters around the Sea of Fallen Stars to return to their former levels prior to the Spellplague. The Netherese besieged the great Cormyr cities of Suzail and Arabel but Cormyr held firm and repelled the forces of Sembia and the Netherese by the end of the year.
1487DR: The Year of the Rune Lords Triumphant, stars reportedly fell from the sky, gods long thought dead walked the land and armies led by Chosen clashed everywhere. Major geological instability resulted in earthquakes and volcanoes as the lands of Toril and Abeir were separated once again. Areas once consumed by large chasms were restored to how they were before the Spellplague.
1488DR: The Year of Dwarvenkind Reborn, faithful prayers to the gods go unanswered and apparently unheard, the Chosen remain and still have their powers. Sembia frees themselves from the Netherese after the floating City of Shade was brought to ground by the wizard Eliminster in an event that destroyed both that city and Myth Drannor.
1489DR: The Year of the Warrior Princess & the end of the Era of Upheaval, the gods begin to talk to their followers again but their influence is subtler than before.
1495DR: The Year of the Tyrant's Pawn & The Present Day.