This page documents events that are important to The Lone Horizon as a whole. For those more important to specific settings, consult the list of setting timelines below:
Before Common Era
- 13.8 billion BCE: The Big Bang creates the Universe and all its subspace variants.
- 4.54 billion BCE: The Helios System forms.
- 40 million BCE: The Polbbesh seed the planet Cypselus with a selection of Earthen lifeforms, including swifts.
After Common Era
- 6,000 CE: The Vangelian Revolution ends in the Union surrendering to the Federalists. They sign the Treaty of Msarah with the Crostilvu and establish the Federation of Vangelia, Teid Castilion serving as president of the new state.
- 6,101 CE: The Vangelian federal government sends hundreds of neohuman scientists on a mission to Earth, ending nearly four millennia of isolation between the planet and the rest of humanity.