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Number of like terms found for System: 4 Dating Systems There are three major dating systems used in reference to historical events: Terran, Vilani, and Imperial.
The Terran calendar centres on a year about midway through the period of Vilani ascendance. The years ascend and descend from one, without year zero, and are suffixed AD and BC, respectively. Terran years have 365 days and are considered standard for the length of a year. Years are further subdivided into months and weeks, although these divisions are no longer used outside the Solomani sphere.
Vilani dates count from the founding year of the First (or Vilani) Imperium. Those before are suffixed PI (Pre-Imperium), those after are suffixed VI (Vilani Imperium), with no year zero. Vilani years are approximately 1.33 standard years in length. Vilani years are further subdivided into seasons, months, and weeks.
Imperial dates count from the founding year of the Third Imperium, specifying year zero as a holiday year. Dates before that are negative, and dates after that are positive. Imperial dating uses a Julian system for specifying days. Each day in the year is consecutively numbered beginning with 001. Thus the first day in the year 1105 is notes as 001-1105. Weeks of seven days and months of 28 days are used to refer to lengths of time, but rarely to establish dates.
Institute for System Studies Research foundation located on Collace (Spinward Marches/268 0407 B628943-D). Primarily concerned with historical, archaeological, and xenological research, the Institute maintains a wide range of facilities for all manner of other scientific endeavors as well. Founded in 988, the Institute is closely tied with Imperial research organizations. Teams from the Institute are employed throughout the sector.
System A star and its family of planets and satellites. The term system denotes a major world and its associated star, plus any other planets, satellites, asteroids, and other bodies.
System Defence Boat A nonstarship specifically intended for defensive operations inside a star system. Developed on the principle that a nonstarship (because of the increased armament made possible by its lack of jump drives) can normally defeat a starship of equal tonnage. System Defence Boats are typically stationed at the vital points of a system (the gas giants, the asteroid belt, the major world, and so on), and they attack invading vessels according to one or more predetermined plans.
System defence boats range in size from displacements of 100 to 5000 and are constructed at all tech levels from eight to fifteen. There are hundreds of different types, tailored to their specific mission.
See also Gunboat.
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