Although the Massassi temples were scattered across the surface of the jungle moon, some of the oldest and most importants temples belonged to the Site. Those would be known millennia later as the Great Temple, the Palace of the Woolamander and the Temple of the Blueleaf Cluster.
Sadow ordered the Massassi to assemble monuments, so his crew burned a piece of forest with their Derriphan-class battleship's concussion missiles, and then expanded outward from the burned clearing. An army of Massassi workers used their machetes to cut the lianas interconnected with felling trees, then mowed down the said trees with cables. When the surface of the site had been scoured clear of the jungle vegetation, the Massassi began drawing up the plans of their future temples, and then the construction started.[1] The primary material of their constructions was a sedimentary calcite compound with certain conductive alchemical impurities. Such compounds were similar to those that could be found on Korriban and Ziost, the homeworlds of the Sith species.[10]
The Sith survivors named this newly domesticated region "Massassi Site" after themselves, and they established their stronghold in the Great Temple.[3] While building the temples for their wordly master, the Massassi came to worship the red orb of Yavin Prime as a deity, the god Yavin who filled the skies of the fourth moon. The warriors developed an inferiority complex, and they found a new purpose in the building of temples: reach the sky and achieve godly status themselves.[11] Even after Sadow's death, the mutated descendents of his Massassi continued to inhabit the Site.[12]
In 3,996 BBY, a Human Jedi Apprentice named Exar Kun was seduced by the dark side of the Force. Kun discovered the spirit of Freedon Nadd, who led him back to Sadow's tomb on Yavin 4. Perfecting his dark powers, Exar Kun appointed himself the new Dark Lord of the Sith. While amassing his own army of Dark Jedi, he subdued the local Massassi, forcing them to build new temples in his honor.[13] Kun also added a roof comb to the Great Temple, which was intended to house arcane rituals.[14] When the alliance of the Jedi and the Republic threatened his newfound glory, Kun used the Massassi's souls to power his own greed, destroying them in the process. At the same moment, the Jedi army orbiting the moon created a devastating wall of light, a powerful salvo of light side energy, which they launched at Yavin 4. This attack set the moon's jungles on fire, burning the rain forest of the Massassi Site to the ground. Since most of the Sith warriors were dead,[13] and others had fled the moon using emergency spacecrafts,[15] the temples of the Massassi Site were abandoned for millennia.[13]
The Alliance to Restore the Republic established their headquarters on the Massassi Site.
"You would prefer another target, a military target? Then name the system! I grow tired of asking this so it will be the last time: Where is the rebel base?"
In 0 BBY,[18] the Alliance launched their desperate assault against the Empire's "Death Star", a moon-sized battlestation. The resulting combat, which came to be known as the Battle of Yavin, ended with the destruction of the Death Star and a decisive victory for the Alliance.[4] Following that crushing defeat, the Empire launched a series of attacks in retaliation, and the rebels were forced to leave Yavin 4.[19]
In 4 ABY, the Galactic Empire was defeated at the Battle of Endor, and the Alliance evolved into a the democratic governement named the New Republic.[18] One year later, the Republic established a temporary Senate in the refitted Palace of the Woolamander.[20] However, when the new government recaptured the world of Coruscant, the Senate was relocated on this planet, which had been the galactic seat of power for millennia.[21]
The Massassi Site then remained unoccupied until 11 ABY, when Luke Skywalker decided to establish his Jedi academy on Yavin 4.[18] The new government decided to establish a New Jedi Order to further protect its institutions, and the history-loaded Massassi Site appeared as the ideal location to train fresh Jedi recruits in relative safety and autarcy.[22]
Aside from rearrangeing the temples, the Jedi also installed their training grounds on the Massassi Site, notably in a set of ruins located to the South of the Great Temple.[6] The old Rebel power generator had been repaired by Skywalker and his droid R2-D2 during their preparation for the Jedi academy. While the Rebel Alliance had been far too busy in its war against the Empire to bother with archaeological inspections,[22] Master Skywalker and his students took the time to survey the Massassi Site in detail, discovering other temples—including the Temple Atun—and retrieving ancient artifacts like the Books of Massassi.[11]
In 25 ABY, a species of extra-galactic aliens known as the Yuuzhan Vong invaded the galaxy, starting one of the most devastating conflicts ever fought in history.[23] Thanks to an illusory projection generated by the Force, the New Jedi Order's were preserved for a time, but the Yuuzhan Vong eventually assaulted Yavin 4 in 26 ABY and drove the Jedi out.[18] Now the invaders had captured the planet, they used damuteks—giant, star-shaped organic buildings—to raze the buildings from the Massassi Site and began terraforming the moon's surface.[2]Four years later, the Yuuzhan Vong were defeated following the liberation of Coruscant, but Grand Master Luke Skywalker decided not to rebuild his academy on the Massassi Site, opting to establish a new one on the planet Ossus instead.[24]
"The shuttle flew on easily and just missed clipping some trees as we came down in the clearing on the east side of the Temple. There, at the base, I saw a long, low opening of sufficient height that I could have tucked the shuttle on inside, but a landing zone had been laid out well clear of that area."
―Corran Horn, landing on the Massassi Site for the first time[src]
A vast area surrounded by forests, the Massassi Site comprised the Great Temple, a fortress of the Massasi people, and two other monuments located to the South-East zone, known to the modern archaeologists as the Temple of the Blueleaf Cluster and the Palace of the Woolamander.[3] In 11 ABY, orbital surveys revealed that more structures still lay buried under the thick vegetation, but the Alliance had been far too wrapped up in its struggle against the Galactic Empire to conduct thorough archaeological expeditions. The Massassi site was crossed by a wide warm river of a sapphire-blue color overlaid with muddy swirls of brown.[25] This river divided the area into three parcels, each with its own temple.[3]
When the Alliance to Restore the Republic took up its quarters on the site, the considerable clearing in front of the Great Temple was turned into a landing pad for incoming starships, and a power generator was built[3] two kilometers away[14] from the west wall of the temple.[3] On the uppermost level of the temple, the Rebels constructed an observation deck that allowed them to see the entire Massassi Site from above the trees.[13]
The shot in Star Wars Episode IV where a Rebel sentry oversees the Millennium Falcon landing on the Massassi Site was shot on top of Tikal Temple IV, looking east where the roof combs of Temple I, II and III can be seen.[27] Today, this same shot is often recreated by tourists and photographers who visit the Tikal site.[27][28]
Al Williamson's early vision of the Massassi Site
An early depiction of the Massassi Site was often featured throughout the 1980s series of comics Classic Star Wars, which was written by Archie Goodwin and drawn by Al Williamson.[29] The temples shown in this series were shaped more like the rectangular summit shrines of Tikal temples rather than the whole structures.[30] However, later depictions of the Massassi Site's temples in canon more closely resemble full step pyramids.[3]