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They start attacking everyone on sight, sometimes even themselves. ~98,500 B.C.E - When the first station becomes fully operative, the Ka'het began to be unstable.They became the centre of the Builders' society. ~98,500 B.C.E - As an attempt to create armies of Ka'het, huge stations start being built in the southern part of their territory.~99,000 B.C.E - The Builders start developing the Ka'het, literally the "Het group", as a way to protect themselves from foreign species.Most of them prefer to stay away from the barren and imperfect worlds close to the Quarg ring, included their homeworld. ~100,000 B.C.E - The Builder civilization has become a flourishing empire, but they have grown fearful and xenophobic.The first contact is hostile and the few Hai ships that arrived were destroyed by the Builders. ~105,000 B.C.E - Some Hai ships reach the Builders in the Graveyard while exploring the Ember Waste.~110,000 B.C.E - The Quarg complete the ringworld in Builder space.~117,000 B.C.E - The Hai discover spaceflight.
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~129,000 B.C.E - The Builders make contact with the Quarg.~130,000 B.C.E - The Builders discover spaceflight.~157,000 B.C.E - The Wanderers move and the Pug open a wormhole between the Builders and the healed territory.~273,000 B.C.E - The Wanderers move to the southern territories.This aims to be a complete timeline of events in Endless Sky, with as accurate dates as we can get.
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