1363 A.D.:
The Zentraedi Imperial Fleet commissions the Thuverl Dalem-class heavy cruiser.
1378 A.D.:
Karbarra begins an arms build-up in anticipation of a possible conflict against the Robotech Empire, which has begun a massive wave of aggressive colonization and expansion across the Large Magellanic Cloud and its surrounding space. This culminates in the development of a new type of starship-mounted weapon known as "Reflex Weaponry," combining the power of a nuclear weapon with the advantages of an area-affect beam gun and impervious to the anti-missile defenses that are mounted on starships.
1379-1382 A.D. (152000-154100 I.C.):
In response to the Karbarrans' military build-up, the Robotech Elders immediately dispatched the Zentraedi Imperial Fleet to Karbarra, which was soon conquered with minimal collateral damage and loss of Karbarran life, and its great industrial capacity turned to Imperial needs. The Karbarrans are then forced to give up their secrets to Reflex Weaponry, which the Elders' Scientist Triumvirates perfect for their purposes.
The Robotech Empire produces several new classes of Zentraedi and Meltrandi warships armed with Reflex Weaponry, most notably the Nupetiet Vergnitzs-class fleet command ship and the Rineunadou Lojmeuean-class monitor.
The Autonomous Republic of Ci'Vonia loudly objects to the loss of its trading partner, Karbarra, but was mollified by assurances of autonomy and free trade with Tirol.
1393 A.D. (161000 I.C.):
The Rape of Optera; The Robotech Elders start to grow uncertain of their positions as their power was derived from Protoculture, which could only be produced by the Invid Flower of Life. To resolve this, they ordered a detachment of Zentraedi harvesters led by Zor to defoliate Optera of all of its Flowers of Life, ransacking the local Invid Hives in the process. Many Invid warriors take up arms against the invaders but are put down by the superior weapons of the Zentraedi. During the Zentraedi pacification of the restless Invid, both the Regent and the Regess are killed in the chaos. It was only the telepathic outrage of the Regent's and Regess's daughter, who would become the future Regess, who felt betrayed by Zor did he left Optera with only a small percentage of the Flower of Life. Despite this, Optera was left as a barren wasteland with little to no life, leaving the Invid to starve to near extinction.
Angered by this betrayal by those who were once thought of as allies, the Invid begin to transform from a peaceful species into a war-like one that sought vengeance for those that had wronged them. The former Regent's and Regess's Royal Advisor and the Invid Princess both take up the position as the new Regent and Regess. Under their leadership, they set about deciphering advanced Tirolian technology given to them by Zor in their initial alliance, creating a vast army of war machines in preparation for an upcoming conflict against the Robotech Masters.
Now as the sole master of Protoculture, the Robotech Empire starts to cement their total dominance over the entire Large Magellanic Cloud and expand their influence into the neighboring galaxies and star clusters.
When an ashamed Zor returns to Tirol from Optera, he discovers that his father Zol has died from a terminal illness during his house arrest (most likely having been poisoned in his sleep by the Robotech Masters during Zor's absence). Now finally determined to end the evil that he had unleashed, he reunites with his old lover Arla and the two destroy all records on the Flower of Life's biology and how to replicate it, making sure that the secrets to create more Protoculture will be known to him and him only. However, once they finished their work, Zor's former best friend Vard confronted the pair and killed Arla in blind loyalty to the Robotech Masters. In a fit of rage, Zor turned his weapon on his former friend and killed him.
1398 A.D.:
The Tirolian Imperial Forces recommissions the Sian Azashar-class long-range colonization vessel as the Sian Azashar-class general purpose vessel, intended to serve as motherships for their defense fleets and personal flagships for the Robotech Masters.
1400 A.D.:
The Tirolian Imperial Forces begins the development of "Bioroids," general-purpose humanoid weapons piloted by the Tirolian warrior clones.
1406 A.D.:
The mass production of Bioroids begins. Many of them enter service as part of the local planetary security forces of Tirol and the Robotech Empire's space colonies.
1450 A.D. (202000 I.C.):
The new triumvirate clones called Triumviroids are perfected.
The Robotech Elders and the Master Triumvirates retire to their great fleet of Sian Azashar-class motherships to live with their new triumvirate clone society, abandoning Tirol's surface.
The Protoculture Wars begins; Commanded by the Regent and the Regess, the Invid Regency begins a fold-guerilla campaign of terror against the Robotech Masters' outermost worlds with their newly-formed fleets of war machines and hive ships. The Zentraedi Imperial Fleet succeeds in forcing the Invid to flee Optera, but this harassment continues after the Invid adopts a new world outside the Tirolians' sphere of influence as their secret base of operations.
1481-1502 A.D. (224000-239000 I.C.):
Zor retires briefly to Ci'Va to continue his research and collaborate with Ci'Vonian colleagues. While there, he pseudonymously pens a series of political and philosophical tracts favoring federalist republicanism over the current imperium. Zor is recalled back to Tirol by the Elders and is severely reprimanded, but his writings strike a chord in the Ci'Vonian people and the old patrician families on Tirol and elsewhere. Ci'Vonian nationalism blossoms.
1519-1520 A.D. (250700-251900 I.C.):
The Ci'Vonian Crisis begins; The Robotech Masters demands the Autonomous Republic of Ci'Vonia surrender its sovereignty to the Robotech Empire. Ci'Vonia balks, and a major fleet of 200,000 Zentraedi warships, known as the "Inspection Army," is sent as a threat. However, the Zentraedi and Meltrandi of the Inspection Army become contaminated by and enamored with Ci'Vonian culture and eventually refuse to carry out their orders. When word arrives that an example is to be made of the Republic's capital world of Ci'Va, a third of the planet's population is hurriedly evacuated by their new Zentraedi allies, just as the 118th Bodolzaa Zer Zentraedi Grand Fleet (then comprising 800,000 warships) commanded by Supreme Commander Dolza arrives to completely bombard the planet, rendering it uninhabitable. In all, 500 million Ci'Vonians and 1.7 billion rebel Zentraedi escape into the vastness of space. Surviving members of the Ci'Vonian government adopt the nearby colony world of Cylesia as their new capital.
1560 A.D.:
The Zentraedi Imperial Fleet commissions the Thuverl Salan-class heavy cruiser.
1562 A.D. (281412 I.C.):
The Ci'Vonians, their many Tirolian aristocratic sympathizers, and rogue Zentraedi and Meltrandi armies, known collectively to the Robotech Masters as the "Disciples of Zor," declare war on the Robotech Empire. In response, the Masters dramatically increase the numbers of loyal Zentraedi and Meltrandi to counter the threat, giving Dolza significant autonomy over the Zentraedi Imperial Fleet and its operations.
1590-1790 A.D. (301000-450000 I.C.):
Caught between the Ci'Vonian war on one front, and the attrition against outlying territories by the Invid, the Robotech Empire begins to show signs of collapse.
1604 A.D.:
- 1604.03.12
Exedore Folmo emerges from his clone chamber.
1610 A.D.:
The Zentraedi Imperial Fleet commissions the Quiltra Queleual-class multi-purpose transport vessel.
1653 A.D.:
The Tirolian Border Fleet is launched to serve as an elite semi-autonomous combat force made up of mixed Tirolian and Zentraedi crews to deal with threats on the Empire's borders. In the following years, the Border Fleet takes up the defensive as the Invid and the Disciples of Zor begin to intensify their respective offensives onto the Tirolians' outer reaches.
1662 A.D.:
The Tirolian Imperial Forces commissions the Quiltra Draenitzs-class multi-purpose transport.
1680 A.D.:
The Tirolian Border Fleet commissions the Sian Dereta-class space battlefortress as its main capital ship.
1732 A.D.:
The Tirolian Border Fleet commissions the Seron Thoun-class battlecruiser.
1771 A.D.:
- 1771.11.27
Joseph-Louis Lagrange theorizes the five libration points (alternatively known as Lagrange Points) in the Earth-Luna orbital system, designated L1 to L5.
1786 A.D.:
The Tirolian Imperial Forces commissions the Taul Detrel-class destroyer.
1792 A.D. (445000 I.C.):
The Ci'Vonian Crisis ends. A Ci'Vonian fleet arrives on Tirol and launches a massive offensive against the Imperial capital. The Tirolian patricians, long stifled by the Triumvirates, throw their lot in with the Disciples of Zor. The Zentraedi loyal to the Empire are insufficient to defend the homeworld, and the Elders are forced to bring out their Bioroid reserves armies piloted by Triumviroids and regular Tirolian citizens. The Ci'Vonians are driven back but at great cost. The Tirolian patricians go into exile among the retreating Ci'Vonians. To prevent another Zentraedi rebellion, all Zentraedi and Meltrandi forces are then cautioned by the Robotech Masters to avoid close contact with "Micronians" (a derogatory term by Zentraedi, Meltrandi, and elitist Tirolians for any civilization that does not embrace advanced "lifestyles" that support positive eugenics-based cloning and controlling one's emotions), because of the consequences of cultural contamination such as what happened with the Inspection Army's encounter with the Ci'Vonians.