From 2020 to 2812 (792 years), the Solar Federation grew to an gigantic size, and it has been called the largest empire since the Li'mi Empire that lasted for one hundred thousand years but fell due to a galactic rebellion ten thousand years ago. That empire covered all of the Andromeda Galaxy and half of the Milky Way galaxy, but the Solar Federation only covered 87% of the Milky Way galaxy. Due to the massive size, population, and great interspecies cohesion, the Solar Federation never fell, or at least not in the next million years, but never extended to another galaxy other than the Milky Way.
This is a timeline of the advancement of Humanity's space exploration. Each time a new system, planet or moon is colonized, the flag of the Solar Federation is updated.
2020[]
Flag of Earth
The first flag of the Solar Federation
- Humanity is only present on Earth and the Moon.
2044[]
Flag of Mars
The second flag of the Solar Federation
- Humans have settlements on Earth, the Moon, Mars and its moons, and Ceres.
2087[]
The third flag of the Solar Federation
Flag of Venus
Flag of Jupiter and the 4 greatest moons: Io, Europa, Ganymede, Calisto
- Two more objects in the Asteroid Belt have been colonized as well as Europa and Venus.
2204[]
The fourth flag of the Solar Federation
Flag of Mercury
Flag of Saturn
Flag of Uranus
Flag of Neptune
Flag of Pluto and its largest moon, Charon
- Humans have settled on every large body in the Solar System. Terraforming is well underway on most planets, and interstellar voyages are beginning.
2355[]
The fifth flag of the Solar Federation with the second system below the first
- Another star system is incorporated into the Solar Federation.
2412[]
The sixth flag of the Solar Federation with the third system beside the second
- Another system has been conquered.
2484[]
The seventh flag of the Solar Federation as each circle represents one star system, with the Solar System in the center
- The Solar Federation now has too many systems to show them on the flag.
2514[]
The eighth flag of the Solar Federation
- Yet more systems are being settled.
2544[]
The ninth flag of the Solar Federation
- Expansion is occurring at a breakneck pace.
2639[]
The tenth flag of the Solar Federation
- Several different alien races now exist within the Solar Federation, co-existing peacefully with humanity.
2812[]
The eleventh and final flag of the Solar Federation. Whenever a star system was added to the Solar Federation from now on, the flag did not change
- More than 800 years into the future, the Solar Federation is the leading force in the galaxy, with all denizens of our galaxy being given equal representation. Humanity has taken the responsibility to ensure peace and prosperity everywhere in the Milky Way.