The presence of a harmful virus in the atmosphere caused many deaths among early colonists before the development of counter-agents. Some areas of the planet suffered earthquakes and intense volcanic activity; these were a source of many valuable minerals, prompting the establishment of extensive mining camps. Some particularly beautiful areas, such as the southern islands, became vacation resorts, while the rich soils of the Aeschal Plateau were ideal for growing genetically modified foodstuffs. Arcadia's relative abundance of resources had its downside, however. Considerable fighting took place on Arcadia in the Exodus Civil War, devastating most of the planet's cities and industrial centers. As farmers and workers were drafted into the armies of the petty warlords, the planetary economy collapsed, causing widespread famine and death.
Reconstruction took many years. As with Inner Sphere worlds devastated in the Succession Wars, the use of nuclear, chemical and biological weapons rendered many cities uninhabitable for centuries. The ruins of cities and military enclosures dot the Arcadian countryside. The planetary capital of Rivera was spared such destruction, and today serves as neutral ground for the three Clans present on Arcadia. A forth Clan, the Blood Spirits, withdrew to their colony world of York in 3059. Administrative and mercantile facilities occupy most of Rivera, along with the Hall of Arcadia. Made of local iron-rich granite, it serves as a meeting hall and houses the command mechanisms for the planetary SDS system. Aerospace bases on the world's single moon provided additional protection against attack.
- System Name: Arcadia
- Coordinates: -116.00, 1605.00
- Star Type: G7V
- Position in System: 1
- Population: 54,000,000
- Percentage and Level of Native Life: Mammals
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