6000 BZA (12,000 BC): The star of Alpha Hades A explodes.
201 BZA (5799 BC): The star of Al-Assad goes nova. It will have been 7,819 years since then in 8020 ZA.
9 BZA (6009 BC): The H96 galaxy ceases to exist.
0 ZA (6000 BC): The Zetareans come into existence.
4037 ZA (1963 BC): The Zetareans explore the Great Pyramid of Khufu, in Giza, Egypt.
6002 ZA (AD 2): Zetarean Lord Dru'lon becomes the Emperor of the Roman Empire.
6900 ZA (AD 900): Something happens.
7776 ZA (AD 1776): The United States of America is founded, with the Zetareans' assistance.
8012 ZA (AD 2012): Dinosaur bones are uncovered by Zetarean and Human scientists.
1 AZA (AD 6001): The Zetareans will go extinct.
16 AZA (AD 6016): Something bad happens.
6009 AZA (AD 12,009): The Hyperdroids of Gliese 581 g will cease to function.
24,000 AZA (AD 30,000): Radiation levels in the Andromeda Galaxy are expected to reach intolerably high levels, according to scientists of the Holy Xaronese Empire.
994,000 AZA (AD 1,000,000): Something even worse happens.
21,999,994,000 AZA (AD 22,000,000,000): The Universe ends in the Big Rip.
99,999,999,994,000 AZA: (AD 100,000,000,000,000): The Degenerate Age of the Universe begins.
9,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,994,000 (AD 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000): The Dark Age of the Universe begins, in which the Universe is in darkness with protons, neutrons, photons, neutrinos, electrons, giant fireflies, and illuminated wasps being the only things in existence. Sometime later, another Universe begins. And the cycle restarts.