Legends Era:
1500 BKF: According to legends, a monk discovered how to mold chakra and taught it to his family.
1100 BKF: In continuation of that legend, the descendants of the man, known as the Otsutsuki clan, began searching ways to achieve the ultimate form of chakra, Six Path Chakra.
1050 BKF: In continuation of the legend, a couple of Otsutsuki clan members by the name of Kaguya and Isshiki ate from the fruit of the divine tree, which forcibly gave them Six Path Chakra, which resulted in them having absolute power and a longer lifespan, but also slowly corrupted their minds.
1020 BKF: In the legend of Kaguya, 30 years after receiving the power, Isshiki's mind had been completely consumed with greed and madness, which forced a battle between the husband and wife duo, resulting in the death of Isshiki Otsutsuki. by the end of that year, Kaguya had a son, who will become the Sage of Six Paths. His were purple and looked bizarre, which would later be known as the Rinnegan.
1010 BKF: In the legend of the Sage of Six Paths, the divine tree became the monstrous Juubi (Ten Tails) and killed Kaguya, taking her Six Path Chakra back. That's when the Sage of Six Paths, still a child then, ran away and began training in order to confront the beast.
1000 BKF: In continuation of the legend, after a decade of the Juubi causing mass destruction across the world, the young Sage of Six Paths fights and defeats the monster using Six Path Senjutsu, then sealing the monster within himself, becoming the first Jinchuriki.
1000 BKF - 920 BKF: The life of the Sage of the Six Paths.
-1000 BKF onward: According to the legend, after his victory over the Juubi, the Sage began traveling around the world and taught people all over the land how to mold chakra and invented the philosophy of Ninshu.
-950 BKF: The Sage of Six Paths started a family in his later years with a woman from the Otsutsuki clan, having two boys: Indra and Asura. Indra was said to be born with the "Eyes of the Sage", sharing the same purple eyes known as the Rinnegan, while Ashura was said to be born with the "Body of the Sage", which was his enhanced physiology.
-920 BKF: The Sage of Six Paths passes away, but not before splitting the body and chakra of the Juubi into 9 parts, resulting in the creation of the Bijuu. He also picks Ashura as his successor, much to the dismay of the older Indra.
919 BKF: According to legends, a year after the death of the Sage, Ashura and Indra had a battle over the succession of the their father's work, with Ashura claiming victory. This caused a split within the Otsutsuki clan as half followed Ashura and half followed Indra, which would later not only result in a long lasting blood feud, but the remnants of the Otsutsuki clan and descendants of Ashura and Indra would late split into four clans: Senju clan, Uzumaki clan, Uchiha clan and Hyuga clan.
771 BKF: The Four Tails Monkey known as Son Goku ruled over a large piece of land as a monarch, demanding worship and gifts from the human. According to legends, he was challenged by an extraordinary human into a fight, which the monkey gladly accepted. In the legends, the battle lasted for 10 days until the human came out victorious and chased the Bijuu away. That man is considered the ancestor of the Kanazomo clan, which are renowned for their Lava Release.
747 BKF: According to the legends, an old sage had managed in her old age to achieve enlightenment, gaining Six Path Chakra. In the tales, she spent the last decade of her life changing the landscape around her, creating the Land of Waterfalls with her own powers, causing life to spread across the land. She was named "The Life Bringer" upon her death.
Rise of Nations Era:
644 BKF: Around the world warlords begin to amass wealth, power and military might with the intentions of conquering as much land as possible and create their own empires. Some desire to rule the entire world.
640 BKF - 473 BKF: Around the entire world the ambitious and now rich and powerful warlords begin a war that will last for over a century and will end shaping the world into the large nations of the world that stand until modern day.
-551 BKF: The Land of Water is founded.
-533 BKF: The Land of Iron is founded.
-509 BKF: The Land of Lightning is founded.
-504 BKF: The Land of Wind is founded.
-496 BKF: The Land of Earth is founded.
-490 BKF: The Land of Fire is founded.
-489 BKF - 473 BKF: Smaller regions with desire for a nationality start a large independent war that causes chaos across the six lands, resulting in the independence of every small nation that is formed afterwards, among them being: Land of Grass, Land of Rice Fields, Land of Waves, Land of Whirlpools, Land of Waterfalls, Land of Hot Waters and many, many more.
Warring States Era:
365 BKF - 360 BKF: A large scale conflict ensues between the Uchiha clan and the Kaguya clan in the Land of Iron, with half of each clan dying in the process. The Uchiha clan start traveling towards the Land of Earth while the remaining half of the Kaguya clan spits apart, with a third of them staying in the Land of Iron while the other two thirds begin traveling towards the Land of Water.
357 BKF: The Senju clan settle in the Land of Fire.
344 BKF: In the Land of Water the Hoshigaki clan and the Kurry clan meet for the first time. When a young girl from the Kurry clan is found dead, the two clans begin a war that would turn into generations-lasting blood feud.
305 BKF: While traveling in the Land of Grass, the Hyuga clan are attacked by the Yojikan clan, who specialized in illusions. While the Hyuga clan managed to defend themselves and escape, a few dozen men and women were separated from the rest of the clan and were hunter for weeks. A fourth of them, mostly the women and girls, were captured by the Yojikan clan to become slaves and breeding mares, while the rest were saved by an ancient group of monks known as the Acolytes of the Moon, who protected a hidden cove of knowledge about the history of the Era of Legends.
305 BKF - 303 BKF: The Hakako clan, who were renown for creating unique swords and using them in battle, were given an ultimatum by the daimyo of the Land of Water: serve him as blacksmiths for his army or die. The Hakako clan chose the later and a conflict began that ended with the enslavement of the Hakako clan. They were tortured until every piece of forging knowledge that they had and then forced to work as slaves.
309 BKF - 300 BKF: The Yuki clan fight a clan known as the Seimemoto clan, which were able to create golem out of trees, rocks and even elements such as fire and water. The result of this long lasting war was the total extinction of the Seimemoto clan.
285 BKF: The Hyuga clan tracks down the location of the settlement of the Yojikan clan, who now had dozens of Byakugan users. In their desire for vengeance for the attack their suffered twenty years prior, the Hyuga clan burned down the entire settlement and killed every man, woman and child in the camp. They also adopted every infant and toddler under the age of five that was born with the Byakugan into the Hyuga clan, thus bringing the Yujikan clan to total extinction.
262 BKF: The Hyuga clan settles in the Land of Fire.
264 BKF - 256 BKF: A long war occurred in the Land of Earth, where the Ginoka clan, who had the ability to create, manipulate and shape silver, the Kamizuru clan, the Aburame clan and the Uchiha clan fought in a four-way war over territory in the Land of Earth. The Kamizuru clan came out the victors, with the Aburame and Uchiha clans fleeing in the direction of the Land of Grass and the Ginoka clan escaping to the Land of Iron.
255 BKF: The Uchiha clan reaches the Land of Fire. They also meet the Senju clan and begin a rivalry that will go for hundreds of years until modern day.
238 BKF: The Hozuki clan wipes out the Hoshiari clan, who were known for their Light Release Kekkei Genkai.
150 BKF: ??? is born.
121 BKF: ??? invents a jutsu that allows him to take over a body, allowing him to live until modern day by jumping from one body to the next.
29 BKF: Suiiki Hozuki is born.
22 BKF: Hashirama Senju and Madara Uchiha are born.
14 BKF: Tobirama Senju and Izuna Uchiha are born.
4 BKF: Susumu Yuki is born.
1 BKF: Izuna Uchiha dies.
1 AKF: Battle of the Valley of the End occurs.
-Hashirama and Madara fight for hours, but the fight is interrupted by the Kyuubi. The two shinobi join forces to fight the Tailed Beast. Eventually, after many hours of fighting they manage to cause him to leave. After the fight the Uchiha clan and Senju clan decide to stop the fighting and join forces.
The Hidden Villages Era:
1 AKF: Konohagakure is founded.
-Hashirama Senju (22) becomes the Hokage.
--Hashirama Senju marries Mito Uzumaki (22) and makes a deal with the Uzunaki clan that a third of the clan would move to Konoha.
-Madara Uchiha (22) becomes the Hokage's adviser and Leader of the ANBU.
--Tobirama Senju (14) joins the ANBU.
2 AKF: The Uzumaki clan arrives at the Land of Whirlpools.
3 AKF: Kirigakure is founded.
-Suiiki Hozuki (31) becomes the Mizukage.
-Kumogakure is founded.
--A/Ay (19) becomes Raikage.
-Sunagakure is founded.
--Kazui "Of the Desert" (31) becomes the Kazekage.
-Iwagakure is founded.
--Mosu Ishida (28) becomes the Tsuchikage.
-Most clans of Konohagakure join the village.
-After an attack close to the capital of the Land of Fire, Hashirama Senju and Madara Uchiha track down and defeat the Kyuubi, sealing him inside Mito Uzumaki.
4 AKF: The Konohagakure Academy is founded.
5 AKF: The First Kage Summit occurs.
6 AKF: The Sunagakure Academy is founded.
8 AKF: The Kirigakure Academy is founded.
-The Kumogakure Academy is founded.
9 AKF: The Iwagakure Academy is founded.
15 AKF: Current year.
), so while I have the CK2 way of things in mind, I also have some EU4 way of thinking as well.
