15,500 Before the Battle of Yavin (BBY) was a year in the Indecta Era of the Galactic Republic. While the expansion of the Republic-known galaxy had come to a near halt with the outbreak of the First Alsakan Conflict fifteen hundred years earlier, scouts and explorers eventually returned to the outer frontier of space. 15,500 BBY, Republic scouts encountered the Duinuogwuin species. Frightened, the scouts hastily retreated to Coruscant, with hundreds of the oft-called "Star Dragons" in pursuit. The Republic planet was attacked, but peace was forged between the Duinuogwuin philosopher Borz'Mat'oh and Supreme Chancellor Fillorean. Together, as part of the peace, they established the University of Coruscant.


The rapid expansion of the known galaxy by the Galactic Republic had nearly ceased with the outbreak of the First Alsakan Conflict in 17,000 BBY. This conflict marked the beginning of the Indecta Era for the Republic, but exploration eventually resumed. New sentient species were being encountered on the rimward frontier of known space. The Republic had also been changing culturally, with the establishment of the Celebratus Archive on Obroa-skai in 16,782 BBY[7] and the creation of the first proto-lightsabers by the Jedi in the years leading up to 15,500 BBY.[1]

The galaxy in 15,500 BBY[]

In 15,500 BBY, Republic scouts exploring the Outer Rim traversed near the planet Murkhana.[7] There, they encountered the Duinuogwuin, fifty meter–long "Star Dragons" that had the ability to travel through the vacuum of space and expel atomic fire from their mouths. The first encounter was disastrous, as the scouts were stricken with fear. Acting in haste, they retreated to Coruscant. The "Star Dragons" misinterpreted the fear, and hundreds followed in pursuit. Reaching the Republic capital-world, the Duinuogwuin attacked the planet and devastated the cityscape. However, the Republic's Supreme Chancellor Fillorean was able to open negotiations with the Duinuogwuin philosopher Borz'Mat'oh, brokering peace. As part of the deal, the two established the University of Coruscant.[1]


The Duinuogwuin became one of many species that either came in contact or became incorporated into the galactic community during the Indecta Era.[7] The peace brokered by Fillorean and Borz'Mat'oh lasted between the Republic and the Duinuogwuin,[8] and some of them even became Jedi. One such Star Dragon, named Willm Lywin, established the Teyan Praxeum on Teya IV in 4600 BBY.[9] On the University of Coruscant's main campus, statues of both Fillorean and Borz'Mat'oh were erected, and the university itself remained for thousands of years.[8]

Notable events[]

Behind the scenes[]

Although the year itself was not explicitly mentioned in Coruscant and the Core Worlds, the 2003 Wizards of the Coast roleplaying game supplement first introduced the Duinuogwuin Contention into Star Wars canon.[8] The date was first provided in the 2005 publication The New Essential Chronology, wherein further details of the conflict were mentioned.[1] 15,500 BBY later received mention in Jedi vs. Sith: The Essential Guide to the Force and The Essential Atlas.[7][10]



Notes and references[]

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 The New Essential Chronology
  2. The Essential Atlas establishes the endpoints of this era as 17,018 BBY and 15,000 BBY.
  3. SWTOR mini.png Galactic History on The Old Republic's official website (article) (backup link) dates the Tho Yor Arrival, as described in Star Wars: Dawn of the Jedi 0, to the year BTC 32,800 of the calendar based on the date of the signing of the Treaty of Coruscant. Since the difference between that calendar and the Galactic Standard Calendar—based on the date of the Battle of Yavin—was 3,653 years per the reasoning here, the Tho Yor Arrival must have taken place in the year 36,453 BBY of the latter dating system. Therefore, the difference between the Galactic Standard Calendar and the dating system based on the Tho Yor Arrival that is featured in Dawn of the Jedi: Into the Void must be 36,453 years.
  4. Star Wars: The Old Republic Encyclopedia places the Treaty of Coruscant, which served as the zero point of a calendar adopted by the Galactic Senate following the conclusion of the Great Galactic War per SWTOR mini.png Galactic History on The Old Republic's official website (article) (backup link), in the year 3653 BBY of the Galactic Standard Calendar, which was based around the date of the Battle of Yavin. Thus, the difference between the two dating systems is 3,653 years.
  5. The New Essential Chronology establishes that the zero point of the calendar introduced by Tarsus Valorum was the Ruusan Reformation. The book places that event in the year of 1000 BBY of the Galactic Standard Calendar—which was based around the date of the Battle of Yavin—therefore establishing a difference of one thousand years between the two dating systems.
  6. The Essential Atlas places the Battle of Yavin, the zero point in the Galactic Standard Calendar per The New Essential Chronology, in 35:3 under the Great ReSynchronization dating system. The Essential Atlas also places the Battle of Selaggis on 43:2:28 and the Battle of Dathomir on 43:3:21. The Essential Guide to Warfare and The Essential Atlas both place the Battle of Dathomir in the year 8 ABY of the Galactic Standard Calendar. The Essential Guide to Warfare also places the Battle of Selaggis in 7 ABY, confirming the placement of the division between each Galactic Standard Calendar year as the third month in the Great ReSynchronization year. Thus, there is a two-month gap between the two dating systems, with the first two months of a GrS year being the last two of the preceding Galactic Standard Calendar year, and there is a total difference of 35 years and 2 months between the two systems.
  7. 7.0 7.1 7.2 7.3 The Essential Atlas
  8. 8.0 8.1 8.2 Coruscant and the Core Worlds
  9. SWAJsmall.jpg "The Most Dangerous Foe" – Star Wars Adventure Journal 11
  10. Jedi vs. Sith: The Essential Guide to the Force

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