A timeline of all major events in the Halo universe from the time of the Forerunners through the rule of the Created.
The First Battle of Harvest was humanity's first contact with the Covenant on the planet Harvest in the Epsilon Indi system and the subsequent destruction of the entire colony.
The Battle of Alpha Corvi II was a battle between the UNSC and the Covenant forces in the Alpha Corvi system on December 3rd, 2525.
The Battle of Bliss was a Covenant attack on the outer colony world of Bliss on February 13th, 2526.
The Battle of Circinius IV was a Covenant attack on the planet Circinius IV and Corbulo Military Academy located on the planet.
The Fall of Madrigal was an early battle in the Human-Covenant War, occurring on and around the planet Madrigal in the 23 Librae system.
The Battle of Hat Yai was a battle early in the Human-Covenant War that took place between late 2528 and early 2529.
Sometime in 2530 the colony world of Eridanus II, home world of John-117, was glassed by an unknown Covenant force.
The Battle of Jericho VII was a three-day naval and ground battle pitting the UNSC versus the Covenant forces in the Lambda Serpentis system.
The Battle of Charybdis IX was a Covenant assault on the planet Charybdis IX in the Charybdis system sometime in 2535, prior to the Battle of the Rubble.
The Battle of Kholo was a Covenant assault on the human colony world of Kholo sometime in 2539.
The Battle for Alluvion was a major conflict in the Human-Covenant War that took place in the Bhaakto system some time in 2542.
The Battle of Miridem was an engagement between human and Covenant forces on and around the colony of Miridem.
The Battle of New Llanelli was an engagement between UNSC and Covenant forces on the colony world of New Llanelli in the Brunel system, sometime in 2546.
The Battle of Skopje was a conflict between the Covenant and UNSC forces on the colony world of Skopje, sometime in 2547.
The Battle of Meridian was a three-year conflict between the Covenant and UNSC forces on and around the colony world of Meridian, a moon around Hestia V in the Hestia system, between 2548 and 2551.
The Siege of Paris IV was a major battle between the UNSC and Covenant forces on and around the colony of Paris IV in the Paris system in 2549.
The Fall of Arcadia, also known as the Second Fall of Arcadia, was a Covenant invasion and subsequent loss of the colony world of Arcadia in the Procyon system on September 9th 2549.
The Glassing of Minab was a Covenant attack on the outer colony world of Minab in 2550.
The Battle of Beta Eridani was a Covenant assault on UNSC forces in the Beta Eridani system, shortly before the summer in 2552.
The Massacre of Troy was a Covenant invasion of the colony of Troy in the Hellespont system approximately five months prior to the Battle for Earth.
The Battle of New Jerusalem was a Covenant attack on the colony of New Jerusalem in the Cygnus system sometime in July or August 2552.
The Fall of Reach was possibly the largest battle during the Human-Covenant War, taking place in the Epsilon Eridani system, in orbit and on the ground of Reach, humanity's largest military stronghold.
The Sedra City Mall Bombing was a terrorist attack on the human colony world of Sedra in the Orrichon system by an unknown Sangheili terrorist organization in February 2556.
The Battle of Aktis IV was a conflict between the UNSC forces aboard the Infinity and the Covenant forces under command of Jul 'Mdama on the planet of Aktis IV in July 2558.
