I couldn't find a reliable timeline online as many event timelines conflict with each other. So I had created my own timeline though it's not 100% accurate it should keep the story orderly.
Year 0
-Konoha was founded by the Uchiha and the Senjus.
-Many ninja clans are invited to join Konoha and joined within 5 years such as the Nara, Akimichi, Yamanaka, Hyuga, Kurama, Inuzuka, Aburame, Onikuma, Sarutobi, Shimura, Mitokado, Utatane. (Might add some other small clans for some oc content later)
-Clans and families that were not invited but chose to move to Konoha anyways.
Hatake, Hōki, Kagetsu. (Might add some other small clans for some oc content later)
-Clans that were invited but chose to decline.
Fuma, Kaguya, Kamizuru. (Might add some other small clans for some oc content later)
-Tobirama starts to lay the framework for the future departments such as Anbu.
Year 3
-Kumokagure is founded
-Hashirama accents to hokage.
-Madara starts to see Konoha as a mistake.
Year 5
-Iwakagure and Kirikagure are founded
-People such as Tsunade, Jiraya, Orochimaru, sakumo, Might Duy born. (Their ages are a bit different than this and I will change this in the story. This is just to make an approximate timeline for the story, and I will change things in the story.
Year 6
-Madara leaves Konoha
-Suna is found and captures the 1 tails.
Year 7
-Madara returns with the ninetails and has a fight to the death with Hashirama.
-Madara obtains a piece of Hashirama's flesh and dies. While Hashirama is permanently injured by the fight.
-Mito becomes the first nine tails jinchuriki.
-Hashirama starts capturing the other 7 tailed beasts.
Year 8
-Clans of iron get their neutrality legitimized by Hashirama and in return host the first 5 kage meeting. Where he sells the tailed beasts to different countries.
Year 9
-Tobirama becomes the 2 hokage
-Tobirama founded Anbu, the ninja academy, sealing corps, barrier division, interrogation division, and the police force. Along with some other smaller organizations.
-Supports the formations of smaller buffer countries.
Year 10
-hashirama dies.
-Other ninja villages start to test the strength of Konoha.
Year 11
The first great ninja war begins.
Tobirama takes his hokage guard/disciples to the battlefield with him
Year 12
Tobirama's disciples gain Fame
Year 13
the war starts to intensify.
Tsunades generation graduated from the ninja academy.
Year 14
Kumo sends calls for peace
Tobirama takes his disciples to sign peace
Tobirama is killed by the gold and silver brothers but the peace is still signed by tobirama
Sarutobi hiruzen becomes the third hokage
Year 15
Due to the death of the second raikage and tobirama the focus of the second mizukage and the second tsukikage changed from Konoha to each other.
As they kill themselves, the third hokage manages to push iwakagure to sign a peace deal that heavily benefits Konoha.
With the help of Uzushiogakure konoha manages to force Kirikagure into peace deal.
Year 16
All countries are starting to recover from the damage caused by the war. The fastest of which is konoha which benefited the most from the war reparations from the 3 great nations.
Hiruzen starts to seriously teach his disciples.
Year 25
Fukaguku Uchiha, hizashi, hizashi Hyuga are born.
Year 27
Minato, kushina, ino, Shika, cho clan leader trio is born.
Year 33
Tensions between the 5 great nations start to heat up.
Year 35
Kushina uzumaki comes to konoha
Year 36 the second great ninja war starts between land of wind, land of earth, land of fire along with the minor nations of rain, grass and rivers.
Provoked by the destruction of Uzushiogakure by the alliance of kumo, kiri, IWA and some minor nations under their influence.
The conflict spread to the land of rain due to Hanzo's ambition
Year 37 the disciples of Hiruzen Sarutobi are encircled by IWA in and at the last moment rescued by the reinforcements of Konoha in.
Year 38
The defeated disciples of Hiruzen Sarutobi's are granted the titles of Sanin by the victorious Hanzo.
Hanzo sues for peace with Konoha.
Year 39
A mutual peace agreement is signed between the three great nations, with Konoha gaining great influence over land of grass and rivers. While rain stands as a neutral country.
Year 44
Conflict once more breaks out between the three great nations.
With the death of the third kazekage, kumo tries to take advantage over them but fails and retreats with his elite troops.
Year 45
Conflicts break out between Konoha SUNA kumo and IWA. With the exception of Konoha and IWA.
Minato gains Fame for holding the border between land of lightning and fire. Against the Ay and Bee duo.
Year 46 SUNA is forced into peace by Konoha.
The third raikage is killed by the 10000 troops led by onoki. Which allowed kumo ninjas to retreat.
Kumo changes its attacking posture into a defensive one due to the change of Raikage and the internal turmoil it brings.
Mc is born
Itachi is born
Year 47
Iwa changes its target from kumo to konoha.
Kirigakure sends its seven ninja swordsmen into the land of fire and declares war.
Might Duy unleashes the Eight gates and kills 4 of the seven ninja swordsmen which forces kiri into a defensive position.
Year 48
Minato eases the Frontline pressure by destroying kanabi bridge.
Obito loses one eye and is saved by Madara Uchiha.
Konoha is pushed into kikyo mountain where Minato Namikaze annihilates thousands of Iwa ninjas.
Konoha and Iwa sign a peace deal.
Year 49
Rin is captured and killed by Kakashi Hatake
Obito awakens mangekyo sharingan
Year 50 kiri is forced into peace
Neji, Lee, tenten is born
Year 51
Nine tails rampage.
Uchiha forced to move to the edge of the village.
Naruto, Sasuke, Hinata, ino, shikamaru, choji, Sakura, kiba. Shino. Are born.
Year 52
Itachi and mc go to ninja academy.
Year 53
Itachi graduates
This timeline is by no means reliable. And I might change things later so If you don't want to be confused by this you shouldn't give much mind to this.