The first colonies, such as Felicity and Nyvan (2125), were populated by a diverse mix of nationalities and ethnicities. This led to unrest and, in some cases, outright warfare between different ethnic factions.
Following the foundation of New California (a colony only open to native Californians, therefore avoiding the ethnic strife present in earlier colonies) in 2163 all colony planets were developed along the same lines with immigration restricted to a particular national or ethnic grouping.
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