As always if you want to know the details beyond what has already been stated here check out http://www.halopedia.org

Some useful links(Its a lot...but you've missed a lot):

• [http://www.halopedia.org/Great_Schism](Great Schism)

• [http://www.halopedia.org/Human-Covenant_War](Human-Covenant War)

• [http://www.halopedia.org/Battle_of_Earth](Battle of Earth)

• [http://www.halopedia.org/Battle_of_Installation_00](Battle of Installation 00)

• [http://www.halopedia.org/Raid_on_Installation_04B](Battle of Installation 04B)

• [http://www.halopedia.org/Blooding_Years](Blooding Years)

• [http://www.halopedia.org/Post-Covenant_War_conflicts](Post-Covenant War Conflicts]

• [http://www.halopedia.org/Jul_%27Mdama%27s_Covenant](Jul 'Mdama's Covenant)

• [http://www.halopedia.org/Ur-Didact](Ur-Didact)

• [http://www.halopedia.org/Battle_of_Requiem](Battle of Requiem)

• [http://www.halopedia.org/Composer](Composer)

• [http://www.halopedia.org/New_Phoenix_Incident](New Phoenix Incident)

• [http://www.halopedia.org/Skirmish_on_Installation_03](Skirmish on Installation 03)

• [http://www.halopedia.org/Requiem_Campaign](Requiem Campaign)

• [http://www.halopedia.org/Battle_of_Kamchatka](Battle of Kamchatka)

• [http://www.halopedia.org/Raid_on_Argent_Moon](Raid on Argent Moon)

• [http://www.halopedia.org/Battle_of_Meridian_(2558)](Battle of Meridian 2558)

• [http://www.halopedia.org/Battle_of_Sunaion](Battle of Sunaion)

• [http://www.halopedia.org/Battle_of_Genesis](Battle of Genesis)