Breckenridge City

Breckenridge City was the capital city of Mars, a planet located in the Solar System which was colonised by humans from Earth in 200 BBY, the city was originally named "Marsville" and was the first town built on the red planet, becoming the seat of the colonial authorities, from the Martian Colonial Affairs Outpost building the affairs of the colony were run, according to decisions and legislation made by the MCA's central offices back on Earth.

The town went through several different name changes, from 200 BBY to 81 BBY it was known as "Marsville", then in 81 BBY the Union of Earth States was founded, and Mars Colony decided to change the name to "Union City" to celebrate the founding of the Union, this name remained in continuous use for the next 60 years, right through Martian independence in 65 BBY and the creation of the Republic of Mars.

The name was briefly dropped in 21 BBY when an insurrection on Mars overthrew the Union-loyal Republic of Mars and replaced it with the Confederate States of Earth-sympathising Confederate Republic of Mars, which changed the name to "Independence", this name only saw use for 6 days until the insurrectionists were defeated and the Republic of Mars regained control, the name was then reverted back to "Union City".

2 years later in 19 BBY the Solar Confederacy, an alliance of planets and moons loyal to the Confederate States of Earth, which was the Confederate equivalent of the United Solar Federation, launched an invasion of the planet, supported by the Confederate-sympathising majority of the planet, and conquered it, forcing the Treaty of Mars, the end of the Solar System War, the Republic of Mars was finally dissolved and replaced with the Martian Confederacy, the successor state to the short-lived Confederate Republic of Mars, the Martian Confederacy changed the name to "Breckenridge City", in honour of both Archibald Breckenridge, supreme commander of the forces of the Solar Confederacy, and Benjamin Breckenridge, his brother, who served as the High Chancellor of the Confederate Republic of Mars.

Only 1 year later in 18 BBY the forces of the Galactic Empire invaded Mars and conquered it, creating a colony known as "Imperial Mars", they changed the name of Breckenridge City to "Imperial City", two years later in 16 BBY the Great Martian Uprising occured and the Martians removed the Imperial presence from their world, the revolutionaries renamed Imperial City back to Breckenridge City, in response the Imperial Navy bombarded Mars from orbit and destroyed much of the surface, including the city itself, an event known as the "Martian Atrocity".

Mars was largely uninhabited for the next 21 years until 5 ABY when the Martian Recolonisation Plan recolonised the planet, a new Breckenridge City was built and the restored Martian Confederacy ruled it from there on.