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The Zoids File is an excerpt of Zi's history, from Zoids: Chaotic Century Graphic Novel Volume 4.

It details the history of Planet Zi, Zoids, as seen in the Battle Story timeline.



The History of Planet Zi Edit

Planet Zi can claim only 300 years of recorded history. The time before is steeped in tribal conflict, natural disasters, and long-forgotten mysteries. Although Zi's historians are constantly updating their knowledge of Zi's past, here is a short timeline of what is known at present.

Before the unification of the Central Continent Edit

Date Events
ZAC 1800 End of the Seismic Disasters

The period of violent seismic activity, such as high-magnitude earthquakes and volcanic eruptions, comes to an end. The people of Planet Zi begin to live in a time of relative security.

Late 1800's Disputes the tribes of the Central Continent

With rapid growth of Zi's population, food becomes scarce, and violent conflicts break out among the 50 or so tribes on the Central Continent.

ZAC 1957 King Helic unites the central Continent

Chief of the Wind Tribe, Helic Murlowa, unites the Central Continent, ends all tribal conflicts and becomes the first king.

ZAC 1957 Helic II is born

King Helic's first son is born, and is named Helic II. His mother is also from the same Wind Tribe from which Helic emerged.

ZAC 1959 Zenevas is born

King Helic's second son, Zenevas, is born. His mother is Helic's second wife, originally from the World-Core Tribe.

The First Age of Wars on the Central Continent Edit

Date Events
ZAC 1978 Helic II Becomes the First President of the Republic

After the death of King Helic, Helic II dissolves the monarchy and becomes the president of the new republic. Zenevas becomes supreme commander of the armed forces.

ZAC 1978 Zenevas Forms the Empire

The Republic's Assembly frames and prosecutes Zenevas, and he is exiled. Zenevas gathers the World-Core Tribe and founds an empire in the western part of the Central Continent.

ZAC 1980 The Outbreak of War on the Central Continent

A border dispute in the Red River region heightens the already tense international situation. The First Continental War breaks out.

ZAC 2029 Humans Arrive

An Earth Lifeship crash lands on the Central Continent, and as a result of human intervention, military technology rapidly advances.

ZAC 2030 Rollout of the ZOID Gojulas

The Republic develops the first mass-produced Giant Battle ZOID, the Gojulas. War on Planet Zi, which had been previously relatively mild, takes a leap towards the present style of brutal warfare.

The Second Age of Wars on the Central ContinentEdit

Date Events
ZAC 2031 The First ZOID Arms Race

Both forces pour all their resources into development, and one after another, new types of Battle ZOIDS are developed and improved.

ZAC 2032 Battle of Aldanne

The first great battle of modern-style ZOIDS on Planet Zi. The Gojulas forces tip the balance, and the Republic comes out victorious.

ZAC 2032 Rollout of the Iron Kong

The Empire produces its first mass-developed Giant Battle ZOID, the Iron Kong. 150 Iron Kongs invade Republic territory and encounter 200 Gojulas in a pitched battle. The Gojulas are over-matched by the Iron Kongs.

ZAC 2034 The Second ZOID Arms Race

Even more resources are poured into the development of ZOIDS. Each new ZOID type becomes obsolete within a year.

ZAC 2037 Rollout of the Ultrasaurus

The Republic completes development on the giant ZOID to be used as the decisive element in battle, the Ultrasaurus. Its enormous firepower completely out-classes the Iron Kong, and throws the Empire's strategists into chaos.

ZAC 2037 Battle of the Mark IIs

The Empire's capture of an Ultrasaurus leads to the Iron Kong Mark II. And soon after, the Iron Kong Mk. II is surpassed by the Republic's Gojulas Mk. II.

ZAC 2039 Fall of the Zenevas Capital

The Republic army, fronted by Ultrasaurus ZOIDS, enters the capital city of the Zenevas Empire. Zenevas himself is exiled to the Dark Continent.

The Third Age of Wars on the Central ContinentEdit

Date Events
ZAC 2041 Revenge of Zenevas

With the support of the Guylos Empire of the Dark Continent Nyx, Zenevas leads an army of new ZOID types back to the Central Continent. His attack breaks through the Republic's front defensive lines.

ZAC 2042 Rollout of the Shield Liger

With the variety of New ZOIDS in the Zenevas Empire's new army, the only Republic ZOID that can withstand the attack is the Shield Liger. For a long time, Shield Ligers hold the battle lines against the Empire Forces.

ZAC 2044 Rollout of the Death Saurer

The Zenevas Empire completes development of their most powerful ZOID, the Death Saurer. In one stroke, the balance of power tips to the Empire's side.

ZAC 2044 Fall of the Republic Capital

The capital city of the Helic republic falls. Its citizens and soldiers retreat to the countryside and build a guerrilla resistance army.

ZAC 2046 President Helic is Married

At eighty-nine years of age, the Republic's President Helic II marries Rosa, commander of the Home Defense Forces. The long lives of the ZOID Clan allow for marriage this late in life.

ZAC 2047 Upgrade of ZOIDS

This is a period of rapid development of more and more powerful weaponry. Each side equips their ZOIDS with these new arms and sends them rapidly to the front

ZAC 2048 Rollout of Mad Thunder

The Republic finishes development of the Mad Thunder, a ZOID meant to overpower the Empire's Death Saurer. The reemergence of the Republic begins.

ZAC 2048 Republic Retakes its Capital

Exhausted with the 4-year long occupation of hostile territory and unable to defend against the mad Thunder, the Empire forces retreat from the capital of the Republic.

ZAC 2051 Fall of the Zenevas Empire

With the mass-produced Mad Thunder, the Republic forces capture the Zenevas capital. After almost a century, the Central Continent's civil wars come to an end.

The Intercontinental WarEdit

Date Events
ZAC 2051 Guylos Empire Declares War on the Helic Republic

The Guylos Empire encorperates remnants of the Zenevas armies into its own, and declares war on the war-weary Helic Republic.

ZAC 2052 Republic Armies Land on the Dark Continent

Led by the Mad Thunder, the Republic's forces create a beach-head on the Dark Continent, but they are faced by previously unknown Guylox ZOIDS and a pitched battle ensues.

ZAC 2053 Rollout of the Gilvader

The enormously powerful flying ZOID Gilvader starts its attack on Republic forces. The Empire begins to gain ground on the Republic.

ZAC 2056 Rollout of the King Gojulas

The Republic completes development of its largest and most powerful ZOID, the King Gojulas. The Republic Forces are on the verge of a final struggle with the Zenevas survivors and the Guylos Empire forces, but before it can happen, an enormous meteorites strikes Planet Zi.

Catastrophe on Planet ZiEdit

Date Events
ZAC 2056 Collision with the Giant Meteorite

An enormous meteor strikes one of Planet Zi's three moons. The moon breaks apart and its pieces fall to Planet Zi. The Central Continent is split into three sections, and a large section of the Dark Continent sinks beneath the waves. It becomes impossible to make war, and the conflict is halted before the final battle can be decided.

ZAC 2097 The Death of Emperor Guylos

Funeral services are held for the fearless warrior who united the Dark Continent under his rule and became their emperor. Prince Rudolph is declared Guylos's heir, and Regent Prozen is appointed Rudolf's guardian.

Western Continental War Begins Edit

Date Events
ZAC 2099 The Guylos Empire Declares War on the Helic Republic

Prozen takes control of both the Guylos army and its political assembly, declares war on the Republic, and sends an occupation force to the Western Continent. The Republic follows suit by sending a contingent of forces to the Western Continent as well, and a new war begins.

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