The Mage Wars marked the end of the Second Era.

Since most civilizations were destroyed during the Mage Wars, this is a time of barbarism. Books and other forms of written records are lost. The island of Derimir is spared most of the ravages of the war, because of its guardians and lack of cities, so the locals live in their small communities.

Noma is founded and becomes the only real town south of Skydome. The remaining settlements are but small villages, with the elven village of Helsin-gé being the second prominent feature.

Slowly some people start to rebuild civilisation.

R'lyeh is founded and quickly gains prominence among the islands.
The Arcane Academy is founded on Derimir, being globally one of the first new magic academies that anyone dared to build after the Magewars. All of the early academies are built in remote places like that, as most people are suspicious of mages.

Skydome is rebuilt after being destroyed in the Magewars, but the dragons have turned isolationist. The eight tribes of dragons feel that many of the ills that happened to dragonkind in the Magewars could have been avoided if they had not interfered in the global powerplays.

First mention of Krao.
Strong pirate raids start to affect life on Derimir.

Great evil forces descend on the island of Derimir and the surrounding islands. The last guardians are all killed by the evil forces.
1st Year: R’lyeh is placed in a timelock.
2nd Year: Razing of Noma leaves the town a shell of its former self, it has not regained its prominence since.
3rd Year: The Arcane Academy on Derimir evacuates, closing the planar link to Derimir and opening it on Fegee, a small atoll in middle of nowhere.
5th Year: The razing of the wood-elven village of Helsin-gé (in what is now known as the Greywoods) and Castle Danara cause the previously thriving elven population to become scattered.

First mention of the Storm Goddess.

The City of Cerea is founded and quickly gains prominence in the area because of the destruction and due to the lack of other powers. Cerea becomes the largest pirate base in the whole ocean. The city is founded on the ruins of a previous fishing village that existed in that place.
The island of Derimir starts to be called Cerea quite quickly.

First mention of Ra
Following the death of the original pirates, the city of Cerea becomes a trade port.

The few houses at the crossroads start to be called Vesper, when the Vesper Inn is opened.

Naye Bay is founded.

The town of Dyoa is founded in middle of the northern wilderness.

5th Year: The Arcane Academy returns to Cerea.
11th Year: Bushburrow restablishes links to the rest of the island, having isolated themselves in the catalysmic events at end of 4th period.

Increasing tensions between many parties are incited by unlife.

The Unlife Wars.

After the Unlife wars ended the counting of periods started again with the Fourth era.