Timeline

This uses American date formatting. Please do try to avoid confusion, and look up how the US formats their dates if you use a different date formatting. Also, I know. BCE is not meant to go over 100. Just roll with it; this is a made-up universe. Some things will be wrong here, because they are right in that universe.

Era 1 - "The Beginning"

 * 0/0/0 BCE - The Big Bang occurs in the void, making the Universe as we know it. It is made of a superfluid, making liquid the very first state of matter to exist, but still the second state of matter due to its heat.
 * 0/1/0 BCE - The fourth state of matter, plasma, forms. It is extremely unruly, hot, and dangerous.
 * 1/5/1 BCE - The third state of matter, gas, forms.
 * 1/23/1 BCE - The first stars start to form out of plasma, burning the gas for fuel.
 * 2/5/1 BCE - The first state of matter starts to form, and solid bodies of rock start to form.
 * 6/3/110 BCE - Planets and other astrological solid objects form.

Era 2 - "Life"

 * 2/6/159 BCE-8/20/604 CE - Life appears and evolves.
 * 8/20/604 CE - The space-faring creatures create the Unity of Worlds, a united force meant to help empires in their protection fend off threats.
 * 9/24/604-5/8/2308 CE - The galaxy lives in peace, avoiding the new threat The Grox whenever needed.

Era 3 - "The Pina"

 * 2/12/2305 CE - The Pina achieve interplanetary space flight
 * 6/25/2610 CE - The Pina achieve intergalactic space flight
 * 1/1/2650 CE - The Pina find their first intergalactic empire
 * 1/2/2650 CE - The Pina are introduced to the Unity of Worlds by that empire
 * 10/21/3720 CE - The Pina obtain new technology
 * 1/29/3729 CE - The Pina find that many other creatures think a lot of tech is impossible (such as teleportation tech)
 * 6/25/3610 CE -

Unfinished