The Hyperdrive Calendar, officially the Galactic Standard Calendar, and also known as the Vellae Calendar, the Caladarian Galactic Calendar, or even the Imperial Galactic Calendar, is the official civil calendar and year designation system used in the Caladarian Galaxy. The calendar era used by the system is based around the year of the invention of the modern Hyperdrive, a feat which was first accomplished by the Laurasian Stellar Republic and the Murphian Hegemony in AH 1. All years before this event occurred are designated as Before Hyperdrive (BH); all years after this event are designated as After Hyperdrive (AH). There is no year zero in the Hyperdrive Calendar, so the year AH 1 immediately follows the year 1 BH. The Hyperdrive Calendar era system was devised by the Murphian historian and archaeologist, Vo'rill, in AH 55. The system, however, did not gain widespread notice in the Core Regions until after AH 100, and it was not formally adopted until AH 164, by the Congress of Vellae. The calendar employed with the era, known as the Briannian Calendar, was devised by the Briannian scientist Noradia c. 1400 BH, based upon the circulations of Briannia. Briannia has a 24-hour day and a 365-day calendar year; Noradia figured out the exact approximation for its rotation around its star and calculated that such a system could be in accord with faster-in-light technology. His prediction turned out to be correct, and the Congress of Vellae accepted the Briannian Calendar as the universal day calendar. The Galactic Standard Calendar is the official standard of the Laurasian Empire, and all Laurasian government documents, statements, and laws are dated according to the system.


The Hyperdrive Era designation system was devised by the famed Murphian historian and archaeologist, Vo'rill (AH 6-84), as part of his work The History of the Evolution of the Core Peoples, which was published in AH 55. Vo'rill's purpose was to create a new and simplified calendar era. At the time that Vo'rill produced his work, the official calendar system employed in the Murphian Hegemony was the Dynastic Cycle system. This system had originally been implemented by the ancient Murphian king of Cyndnie, Ba'grill, c. 1700 BH and had remained in use ever since. According to the Dynastic Cycle system, the year was "in the Age of Ba'grill, the fifty-ninth year of the cycle of Ba'gar, the centennial of the Crypso Revolution, and the three hundredth year of the calends of Cyndie" (AH 54). Vo'rill wished to create a system that would be easily accessible to the general public and one which would also honor the invention of the hyperdrive, whom he considered to be a significant achievement, since it had galaxy-encompassing results and heralded a modern era of galactic exploration, war, and commerce. Although he had published numerous works of importance before The History of the Evolution of the Core Peoples, that particular one was the first in which he employed the Hyperdrive Calendar system. In a table appendix which he published at the end of his work, Vo'rill explained that the "fourth year of the cycle of Ba'gar" (1 BH), the year of the invention of the hyperdrive, should be re-designated 1 BH (Before Hyperdrive), while the "fifth year of the cycle" should thereafter be known as AH (After Hyperdrive) 1. Vo'rill declared that there should "not be a year zero", since there was not a year in which the Galaxy had ceased to exist. The currently-existing calendar division (the Murphian local year of 364 3/5 days), should be simply adjusted in accord with the system ("the kalends of Athar, of the fourth year of the cycle of Ba'gar" should become the Atharian Kalands, 1 BH). This day, which was in accordance with February 17, 1 BH, should not be the end of that year; all days after the invention of the hyperdrive in that particular year would still fall in the "Before Hyperdrive" domain.


The Laurasian historian and navigator Dionysius Exiguus (32-105), founder of the Astrographical Academy of Laurasia Prime, was familiar with the work of Vo'rill, and used Hyperdrive Era dating in his Scientific History of the Laurasian Civilization, which was completed in AH 101. Exiguus was the first prominent intellectual on Laurasia Prime to utilize the new system. Murphy, in fact, under the leadership of King Veruna II (69-114), had already adopted the Hyperdrive Calendar system in AH 83, the year before Vo'rill's death. Murphy's adoption, and the utilization of the era by Exiguus, gradually encouraged the spread of the Hyperdrive Era to other civilizations and species throughout the Core Regions. Throughout the first half of the second century AH, in fact, the Era began to be adopted by more intellectuals, governments, corporations, and guilds for official use. On Laurasia Prime, the first official adoption of the Hyperdrive Era occurred in 117, when the Chancellor of the University of Christiania, Isagoras Alacsoras (72-135), first utilized the designation in his monumental historical work, Survey of the Progress of Scientific Discovery, which sought to explore all of the major innovations and inventions on Laurasia Prime, and in the Purse Region, during the two millennia preceding the invention of the hyperdrive.

In 132, under the leadership of Consul Hippias (r. 130-47), the Representative Senate formally adopted the Hyperdrive Calendar as the official standard for the Royal Laurasian Government. They therefore followed Briannia (102), Chancia (106), Venasia (113), Rebecca (119), and Metallasia (130). Decapolia followed in 137, and then Ogla, Meris V, Nathaniel, Sanegeta, and the Polonian Confederacy by 144. Finally, in AH 156, the formation of the Galactic Confederation opened the avenue to a more formalized adoption of the calendar system. Eight years later, the Congress of Vellae, the first diplomatic conference among the member-states of the Confederation, convened on Vellae, which was located near the future Briannian Nexus Route. The ensuing Congress, which first convened on March 9, 164, lasted for over four months before reaching its final agreement, embodied in the Treaty of Vellae (July 10, 164). Besides specifying military, diplomatic, and economic arrangements within the Confederation, the Treaty also provided for the universal adoption of the Hyperdrive Calendar, as a common dating system, among all members of the Confederation.

By 164, therefore, the Hyperdrive Calendar was in use from the Galactic Center to as far eastwards as Organia, Esmeralda, and Hannis, along the Rebeccan Galactic Trade Route. It therefore progressed outwards into the rest of the Caladarian Galaxy, and eventually, into the satellite galaxies. The Millian Empire, mortal enemy of the Galactic Confederation, adopted the system in AH 202; it was in due course followed by the Celestial Dynasty of Kimania (206), the Kingdom of Larkin (214), the Wakedian Empire of Robert (219), the First Huntite Empire (223), Eutagia (229), Acamaria (234), Gedrosia (249), Maurya (253), and the Rokai Confederacy (266). The Kingdom of the Nandi waited until 297; the Calrissians adopted the system in 303, and the Esperantos, in 325. Sargon the Conqueror of Arachosia, who embarked upon the conquest of the Millian Empire and the Core Regions in 322-36, adopted the system for the Arachosian species in AH 331. The Coronadians, Edmundians, Mackenzians, Scanlans, and Belkanites all adopted the system in AH 375, Clancia in 379, and Ecreutus in 401.

Teth did not adhere to the Calendar until 424. The Torfian Kingdom of Imegina, established from the late fourth century, held out until 576, continuing to use its older system, the Migration Era Calendar. The Tofs, who intruded into the Galaxy in the seventh century, held out until 956. The Dasians themselves, established within the Caladarian Galaxy from AH 762, adopted the system under Genghis Khan's auspices, in 812. The Donguarians were the last native species in the Caladarian Galaxy to adhere to the Hyperdrive Calendar, in 945. During the course of the eleventh through thirteenth centuries, the various barbarian species who further intruded into the Galaxy would adopt the system in due order, the Mellorites being the last to accede in 1275. By 1300, more than eleven centuries after it had first been recognized by the Congress of Vellae, the Hyperdrive Calendar was in use throughout the Caladarian Galaxy and its satellite galaxies.

Alternate calendar erasEdit

The Hyperdrive Calendar, however, is not the only calendar era in use within extra-galactic civilization. Beginning in the fifteenth century, the Laurasian Empire and other civilizations of the Caladarian Galaxy came into extensive contact with those of the Great Amulak, each of whose major powers employ their own calendar. The Holy Spamalkan Empire uses the so-called "Spamalkan era", which designates 38 BH as Year 1, the year that the Spamalkan species first developed interstellar spaceflight. The Stellar Kingdom of Portugallia uses a system known as the "Annular Cycles", with the years beginning from 5000 BH, and one hundred consecutive years being counted as one "Cycle", based loosely off the orbit of the Stellar Kingdom's capital world, Lisbon. The Marasharite Empire and Barbary States employ what is known as the "Marital Calendar", beginning with the hegira of AH 622, in which the Marasharite chieftain Hussain was said to have fled with his followers from Khorsand (the original homeworld of the Marasharite species) and into the "Great Beyond", surrounding the star system. 622 is construed as year 1, and thus (as of 1803), Marasharita considers itself to be in MY 1181. The Great Kingdom of Masacavania counts years from the (mythological) creation of the Universe, believed to have been c. 10,000 BH. In Masacavania, therefore, it is currently year AC 8196.

The Holy Austarlian Empire uses the "Era of the Incarnation", beginning in c. 3100 BH, believed to be the year that Olaf Wasarf, the High Acolyte of the Austarlian Gods, ascended into heaven. The current year in Austarlia is IY 4903. The Autocratic Pruthian Empire uses the "Foundation Era", beginning with the establishment of the first unified Pruthian state, the Eastern March of Pruthia, dating from AH 939. The current year, consequently, is FE 864. The Vendragian Confederacy, Stellar Kingdom of Franconia, Tuscany, and Sultanate of Morocco each use regnal years, marking events through the reigns of their monarchs. The United Durthian States uses the "Republican Era", marking years since the commencement of the Durthian Revolt in 1772. The current year in Durthia is RE 31. And finally, the Haxonian Confederacy uses the Haxonian Indiction Cycle, based upon fifteen-year indiction cycles.

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