Jedi Praxeum The ancient Jedi scholar Karena coined the term praxeum to describe a Jedi academy as a place for the " distillation of learning combined with action . " In the days of the Galactic Republic , well - known praxeums included those on Teya IV , Arkania , Ossus and Dantooine . The only Jedi Praxeum during the time of the New Republic was founded by Luke Skywalker on Yavin 4 in 11 ABY to train new Jedi . Inspired by the parting words of Obi - Wan Kenobi and the several Force - sensitive individuals he had encountered , Skywalker began planning for a unique institution where new and old Jedi could learn together . History . Layout . Once the project was sanctioned by Chief of State Mon Mothma , Skywalker asked Leia Organa Solo to come up with a location to set up the academy . Mon Mothma suggested Yavin 4 to Organa Solo who in turn recommended it to Skywalker . Skywalker agreed that Yavin 4 was the perfect location . He decided to set it up in the Great Temple that housed the earlier Alliance base at the time of the Battle of Yavin . Internally , the Praxeum made use of the four level design of the Great Temple , with each floor making up a step of the ziggurat . Thus , all floors were based on similar plans with small cells , chambers and corridors around a large central space . The topmost level , almost entirely taken up by the Grand Audience Chamber , was used as a ceremonial hall by the Alliance garrison and later employed by the Jedi Academy as a teaching space . The next level was converted entirely to accommodations for the Jedi Masters and their students ; with any extra space being used for storage . On the level below , the central chamber was named the Strategy Center , with the surrounding rooms on this level used as meeting rooms , communications and computing bays , kitchens and dining halls . The lowest level of the temple continued to serve as a vast hangar bay for starfighters and other vehicles , with a second hangar underneath , and cellars and catacombs that remained largely unused . Access to the hangar was by a set of ground - level blast doors opening onto a landing pad . After the Galactic Civil War the average ground level around the structure ' s exterior had risen , so that the main entrance was at War Room level , and many of the students thought of the entire hangar complex as being essentially underground . Although the hangar doors remained accessible , the area in front of them no longer served as the main landing zone . The academy had many training grounds equipped with remote s , ASP - 19 battle droid s , training lightsabers and other technology to challenge the new apprentices . The first students . After the transition from Rebel base to Jedi academy was complete , Skywalker recruited twelve students : Tionne , Dorsk 81 , Kirana Ti , Kam Solusar , Brakiss , Streen , Gantoris , Corran Horn ( under the alias of Keiran Halcyon ) , Madurrin , Kyle Katarn ( who soon left due to his concerns about the dark side of the Force ) , and two other cadets ( possibly Havet Storm , Keyan Farlander , Nichos Marr or Harlan ) . They were joined shortly thereafter by Kyp Durron , Mara Jade , Cilghal and Dal Konur . Prodigal sons . A Chistori student named Desann proved very talented , but struck down his training partner Havet Storm in a fit of rage . He fled the academy , only to return later as a Dark Jedi determined to destroy the academy with a huge invasion force of the Empire Reborn . Horn left the academy early on , frustrated with Skywalker ' s training methods , and eager to find his kidnapped wife Mirax . Horn doubted that he could use his Force abilities for anything and chose instead to rely on detective skills learned during his years with CorSec . He realized that it was possible to combine his detective and Jedi skills . After he rescued his wife , he would eventually return to the academy . Mara Jade was initially only loosely attached to the academy . She would stay there for some time and train with the other students and teach them what she knew . She did not feel ready to commit herself fully to the way of the Jedi yet , as she still had many unresolved issues . Eventually she became more and more attached to the academy , and to Luke Skywalker , whom she would eventually marry . Like Horn , Katarn , who had trained informally with Jade prior to the establishment of the Praxeum , returned to the academy to assist the Jedi in defeating Galak Fyyar and Desann ' s invasion force of stormtroopers , swamptroopers , Reborn warriors and shadowtrooper s . After defeating Desann in a lightsaber duel deep in the Great Temple , Katarn decided to stay at the Praxeum . All three were to become central figures in Skywalker ' s Jedi Order . By the start of the Crisis of the Disciples of Ragnos , Katarn and Horn had apprentices under their tutelage . Katarn had obtained the rank of Jedi Master at that time . Jade and then Horn would later advance to the rank of Jedi Master . Later students . Later on , students such as Jaden Korr , Rosh Penin , Cray Mingla , Nichos Marr , Ganner Rhysode , Wurth Skidder , Octa Ramis , Miko Reglia , Raynar Thul , Lusa , Tenel Ka , Lowbacca , Zekk , Tahiri Veila , Tekli , Eryl Besa , Ulaha Kore , Jovan Drark , Zak Arranda , Tash Arranda , Daeshara ' cor , Dolph , Raltharan attended . Anakin Solo , Jacen Solo , and Jaina Solo also attended the Praxeum to develop their abilities . Students as diverse as Rodians , Humans , Twi ' lek , Kel Dors and Zabraks attended the academy in this period . Penin turned to the dark side during the crisis of the Disciples of Ragnos but was redeemed by Korr and Katarn . Most of the students at the academy participated in the epic battle on Korriban where the Disciples of Ragnos were defeated once and for all . In 14 ABY , it was common that multiple students were assigned to only one Master due to the small number of Jedi Masters , like in the case of Kyle Katarn and his apprentices Jaden Korr and Rosh Penin . The Battle of the Jedi Praxeum . After receiving information from Zekk that the Jedi Praxeum was in danger from attack by the Second Imperium , Jacen , Jaina , Lowbacca and Tenel Ka alerted Luke Skywalker and the rest of the Jedi trainees of the incoming attack . As the trainees prepared , the Shadow Academy and the Empire appeared in the sky above the Jedi Praxeum and unleashed swarms of TIE fighters , stormtroopers and Dark Jedi adepts . Using TIE stealth s , the invaders flew under the academy ' s shield and destroyed the generator leaving the academy open to aerial assault . As Masters and trainees engaged the enemy , Brakiss attacked his former master Luke Skywalker . After retreating , Brakiss demanded to see the Emperor . He would later discover that the Emperor had never returned . Back on the ground , the remaining Imperial forces saw the destruction of the Shadow Academy and surrendered . In a final attempt to gain victory , an officer of the Empire slipped into Praxeum and planted a time bomb . The bomb exploded and destroyed a large portion of the building though no Jedi was badly injured . Reconstruction took place on the Jedi Praxeum . The Jedi trainees would also play a role in the clearance of debris and would also hunt for shards of carved stone blasted from the ancient structures , cataloging them so that the pieces could be reassembled . Off - world engineers , architects and laborers would also be called in to help in the restoration efforts . New Republic military forces and planetary shields would also be installed on the Praxeum to defend it . Sometime after this battle , the New Republic stationed a fleet over the moon to protect it . Final Destruction . The second battle of the Jedi Praxeum occurred during the Yuuzhan Vong War in 26 ABY . The battle was fought between the Jedi and the Peace Brigade ; who attacked , causing the Jedi to flee into the jungle as the Yuuzhan Vong consolidated their presence in the system . Talon Karrde and Booster Terrik helped the few Jedi Knights and the many Padawans escape the clutches , making the " Errant Venture " and then the Shelter in the Maw the new home of the Jedi Academy . After the end of the Yuuzhan Vong War , the Praxeum was reestablished on Ossus . Life at the academy . Students at the Praxeum trained in the ways of the Force , learned to defend themselves with a lightsaber , and studied diplomacy , history and more . Most of the Jedi in Skywalker ' s New Jedi Order were trained at the Academy and learned somewhat directly from him , although most were trained by the battlemaster of the academy , Kyle Katarn . The Jedi Praxeum , wherever it was , tended to be a base of operations for the Jedi , and often a home when they were not performing other jobs for Master Skywalker or going about their personal lives . Skywalker was known to leave the Academy in times of crisis to help the New Republic , leaving it in the capable hands of Streen , or Kam and Tionne Solusar .