Age of the First Rotation

Age of the First Rotation a galactic year is 225 million years[1]

Key Events During the First Rotation

 * The Big Bang or the Beginning occurs.
 * The Nnnth are the first sentient beings of this Universe to reach TL 12.
 * The Nnnth explore Hyperspace and conditions beyond the Cosmic Veil and meet the Arth
 * The Arth and the Nnnth merge and become the Narth
 * The first Survivors of Precursor Universes arrive
 * The Tomradi (original) become a spacefaring society
 * The Emperor begins his reign
 * Invictus slays the Emperor
 * Invictus expands the First Empire over a million Galaxies
 * Invictus Rex disappears
 * The Empire splits in two factions

[1] The galactic year, also known as a cosmic year , is the duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy. Estimates of the length of one orbit range from 225 to 250 million terrestrial years. The Solar System is traveling at an average speed of 230 km/s (828,000 km/h) or 143 mi/s (514,000 mph) within its trajectory around the galactic center, a speed at which an object could circumnavigate the Earth's equator in 2 minutes and 54 seconds; that speed corresponds to approximately 1/1300 of the speed of light.

The galactic year provides a conveniently usable unit for depicting cosmic and geological time periods together. By contrast, a "billion-year" scale does not allow for useful discrimination between geologic events, and a "million-year" scale requires some rather large numbers.