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Timeline

13.8 billion years B.C.

Events

Between 13.8 billion to 50 million B.C

Events
  • Alteran division: A philosophical schism emerges between two factions of the Alterans. The larger faction, known as the Ori, progresses towards belief in religion, and the smaller faction towards belief in science. Ultimately, their viewpoints diverge so much that the two groups split apart and begin to oppose each other, culminating in the Ori attempting to destroy the disobedient Alterans. (SG1: "The Fourth Horseman, Part 1")
  • The remaining Alterans hide on Celestis. The scientist Amelius creates the Ark of Truth, a mind programming device that can be used in a war against the Ori. However, instead of going to war, the Alterans decide to leave their galaxy, and began searching for a new home. The Ark is left behind buried on Celestis. (SG1: "The Ark of Truth")
Between 50 and 30 million B.C.
Events
  • In this period of time, the Ancients launched the automated ships to seed the first known design of Stargates throughout many galaxies, with another ship called Destiny planned to follow it up and explore those planets and gather and decode a signal or message embedded within the Microwave Cosmic Background Radiation either prior or shortly after the Big Bang. . (SGU: "Air, Part 2")
Between 30 and 10 million B.C
Events
Between 10 and 5 Million B.C
Events
  • Atlantis, an Ancient city-ship within the Milky Way, departs for the Pegasus galaxy via its Stardrive. Some speculate that they were fleeing from the plague. An Ancient later known as Ayiana is left behind, sometime around then she becomes infected with the plague, and ends up frozen in ice. (SG1: "Frozen") (SGA: "Rising")
  • Once the city leaves, the Ancients activate the Dakara superweapon to try and reseed life in the galaxy after the plague. (SGA: "Rising")
  • The ascended Ancients used their combined power to shield the existence of humanity in the Milky Way and Pegasus galaxies so that the Ori are unaware of their existence. (SG1: "Origin")
  • The Ancients settle within the Pegasus galaxy (on the planet Lantea), colonize several worlds, and investigate the evolution of humanity on others. Their people come to be known as the Lanteans.
  • The Ori ascended and created a second generation of humanity in their home galaxy. The ascended Ori added to the Book of Origin about worshiping them as gods because they discovered that they could gain more power in the ascended planes through man's relinquishing of his free will. (SG1: "Origin", "The Fourth Horseman, Part 1")
  • The Ori followers build their capital city, the City of the Gods, near to the Altera's mountaintop settlement that was called "Ortus Mallum". The City of the Gods was the training place for men to become the Priors of the Ori and the abiding place of the ascended Ori. (SG1: "The Ark of Truth")
  • Several generations of Ori Priors and unbelievers alike searched the ruins of the Alteran mountaintop settlement. Whenever the Priors found artifacts that pre-dated the Ori ascension, they deemed them as heretical and then brought them to the City of the Gods to be burnt in the fires. Heretics searched for evidence to discredit the Ori's word and intention and gathered up these artifacts in secret until they could obtain enough proof that would cause even the most fervent believers to doubt the Ori. (SG1: "The Ark of Truth")
Around 1 Million B.C.
Events
Around 100,000 B.C.
Events
  • On Earth, the first Homo sapiens appeared. Their genetic makeup is devoid of many elements that mark them as related to the Ancients, aside from eventual physical similarities. (SG1: "Living Gods: Stargate System Lords")
Around 98,000 B.C.
Events
  • The world later designated P5C-353 is dying. The microscopic A't'trr that live on the planet created an orb in which they slept for 100,000 years waiting for someone to take them through the Stargate. Once exposed to the atmosphere of a living planet, they will awaken. (SG1: "Message in a Bottle")
Around 73,000 B.C.
Events
  • A number of conflicts erupted among primordial Goa'uld for what are a limited number of suitable Unas hosts. Goa'uld unwilling to blend with common creatures vie for access to the Unas, eventually escalating into bloody conflict with claws and early makeshift weapons. The Goa'uld population drops drastically. (SG1: "Living Gods: Stargate System Lords")
Around 66,000 B.C.
Events
  • The Unas population begins to thrive again. Unblended Unas are found in remote areas, wary of the parasites. Even in this state, the blended Unas are superior in every way, having developed a social structure, a functional language (ancient Goa'uld), and tool use. Larval numbers are artificially limited through cannibalism to control the population growth. (SG1: "Living Gods: Stargate System Lords")
Around 42,200 B.C.
Events
  • The Goa'uld rapidly form a thriving - albeit small – society, helped by their genetic memory. The species’ genetic memory accelerates their development at an exponential rate. In short order they discovered the Stargate and begin the exploration of other worlds to hunt and seek new hosts. Their rapid development and cutting of evolutionary corners dooms the Goa'uld into a parasitic existence forever accustomed to taking what they desire, with no thought or concern for other species. (SG1: "Living Gods: Stargate System Lords")
Around 28,000 B.C.
Events
  • The Goa'uld discovery of the worlds formerly controlled by the Ancients provided the Goa'uld with a rapid influx of technology. P3X-888 is entirely abandoned, saved as a breeding ground for Unas hosts, who still lived in fear under the boot of their parasitical oppressors. (SG1: "Living Gods: Stargate System Lords")
  • The Goa'uld leadership is formed from out of the early Unas tribal culture, lead by the Alpha Male, Atok. This leadership would rise to the first recognized Goa'uld order, fueled by the impressive physical forms and near-magical technology appropriated from ruins of the Ancients. (SG1: "Living Gods: Stargate System Lords")
  • An Asgard ship with its crew are placed in suspended animation. However, the navigational computers were damaged at some point, and the ship drifted across galaxies, ultimately ending up in the Milky Way galaxy. (SG1: "Revelations")
Around 22,000 B.C.
Events
  • Petty squabbling among the Goa'uld eventually give way to new leadership headed by Apep, physically superior son of Atok, who brutally kills the warlord in public fashion in full view of the other Goa'uld. Instead of claiming the forces of Atok for his own, Apep divides them equally among the strongest and solicits their stewardship. To his underlords, Apep uses them to secure the peace, ensuring that no one among them becomes too powerful. (SG1: "Living Gods: Stargate System Lords")
  • Apep decrees his Underlords as his brothers and sisters in rulership, although he remains firmly in control. The underlords – Ra, Nut, Thoth and their servants Osiris, Isis, and Bastet – pledge their loyalty and, for a time, a single united leadership rules the Goa'uld. Thus united, the symbiotes sweep through the galaxy like a plague. Their numbers swell and the Unas are nearly wiped out – again too many larval Goa'uld are bred. In addition, the life of the Goa'uld is significantly lengthened, creating even more of a population problem. Apep continues the ancient practice of ritual cannibalism. (SG1: "Living Gods: Stargate System Lords")
Around 19,000 B.C.
Events
Around 18,000 B.C.
Events
  • The Goa'uld, Thoth is able to create the first rudimentary Sarcophagus by reworking technology of the Ancients. The device is primitive and powerful, able to sustain an Unas host for several generations. The device, however, exerted a terrible toll on the Goa'uld larval, as the sarcophagus introduced the mineral Naquadah to the larva's bloodstream and the Goa'uld queen are unable to prevent its transference to future Goa'uld larva. (SG1: "Living Gods: Stargate System Lords")
Around 17,800 B.C.
Events
Around 17,500 B.C.
Events
  • Determined to rule the Goa'uld, Anubis made his bid for power, utilizing a super weapon, which harnessed enormous amounts of power. Before the other Goa'uld, he forcibly removed Apep's symbiote and devoured it, declaring himself Emperor. Betrayed, the other Goa'uld banded their forces together to defeat Anubis. The battles raged for a hundred years, entire star systems were destroyed and legions of Unas fell in the crossfire. The Goa'uld themselves were nearly eliminated, but eventually defeated Anubis and destroyed his forces. Captured, the Lord of the Dead was banished by the remaining symbiotes. (SG1: "Living Gods: Stargate System Lords")
Around 17,400 B.C.
Events
  • Ra instituted himself as ruler of the Goa'uld, again taking on the leadership structure originally formed by Apep. For his part, Thoth is also banished, although his understudy, Telchak remained. Bastet is rewarded for her help against Anubis. Osiris and Isis joined the ranks of the Goa'uld Underlords as well, and Anubis' super weapon is dismantled. Ra took the six crystals that powered the device and divided them amongst the remaining loyal Goa'uld, knowing that his species’ pretty bickering would ensure that the weapon is never used again. (SG1: "Living Gods: Stargate System Lords")
Around 16,000 B.C.
Events
  • Ra appointed a new hierarchy of rulers to aid in the governing of the Goa'uld. By once again dividing the spoils of several millennia of conquest, Ra created a cadre of System Lords. Membership to the body was by vote of the existing members and afforded many benefits, including access to Unas hosts in order to maintain armies. In this act, Ra created the power structure that served the Goa'uld through to present day, and anoints Egeria as his Queen. Ra takes other queens, such as Hathor, during his long rule. (SG1: "Living Gods: Stargate System Lords")
Around 14,000 B.C.
Events
Around 13,000 B.C.
Events
Between 10,000 and 8,000 B.C.
Events
  • Humans were settled on the planet known as Altair, but they had to develop a way to preserve themselves when the surface of their planet became toxic. They created android bodies in which to harbor copies of their consciousnesses. (SG1: "Tin Man")
  • A war between the Ancients and the Wraith was started, when the Wraith began consuming human populations, by sucking on their life forces. (SGA: "Rising")
  • Ancient scientists developed nanites to kill the Wraith from within, but the nanites exceeded their programming and take on human form. These human-form Replicators settled on Asuras and came to be known as Asurans. Realizing their mistake, the Ancients send warships to Asuras and bombarded the Asuran settlement to destroy them, as they were deemed a failed experiment. Unbeknownst to the Ancients, however, some nanites survived and began to build their society once more. (SGA: "Progeny")
  • The Ancients created a device that was aimed at killing Wraith from within by creating explosive tumors, but the plans turned out to be harmful to everyone in proximity, including Ancients and humans. (SGA: "Sunday")
  • The Ancients develop Project Arcturus on Doranda that was meant to be a powerful energy weapon, but the technology was untested and ended up killing several of the Ancients and Dorandans before the Wraith returned to the world and destroyed it. (SGA: "Trinity")
  • The Ancients build a hangar facility on the planet Taranis, where they keep one of their damaged warships. The facility's shields were powered by geothermal energy drawn from the magma chamber in the caldera of a dormant supervolcano. Because of the dangers of causing the volcano to reawaken, the Ancients programmed in several failsafes to prevent the shields from being run continuously at maximum capacity for an extended period of time. (SGA: "Inferno")
  • The Ancients create a place called "Sanctuary" where they and others could hide from Wraith attacks inside a time dilation field. The shielded bubble was powered by a Zero Point Module, and time within it was approximately 250 times faster relative to time outside of it. The doorway into the Sanctuary was only one-way, meaning that once a person stepped inside, he couldn't turn around and go back out. The main purpose of the Sanctuary was not just for the humans who found it to hide from the Wraith, but for the last of the Ancients to seek the path to Ascension. (SGA: "Epiphany")
  • One by one, Ancient worlds fall to the Wraith. The Ancients abandon their great cities, including the one on the planet Athos, which the Athosian humans called the City of the Ancestors. The Athosians never ventured into the city for fear that their entry would summon the Wraith. (SGA: "Rising")
  • The Ancients sent their powerful warships powered by a Zero Point Module deep into Wraith territory, and they were captured by the Wraith. The Wraith used the ships' ZPMs to power a cloning facility that produced thousands upon thousands of their Wraith warriors. After that, the war was won for the Wraith because they severely outnumbered the Ancients and could execute relentless attacks. (SGA: "Spoils of War")
  • An Ancient warship loses communication and shields when the Wraith attacks the vessel. Although the Ancients engines are damaged, they manage to escape into space. They realize however, that their main drive was leaking deadly radiation and they are forced to abandon ship, leaving the vessel to drift in a two-hundred-year elliptical orbit around a nearby dwarf star. (SGA: "Travelers")
  • The Ancients began hiding Zero Point Modules throughout the galaxy, including the planet Dagan, where the Sudarian worship the Ancients. A brotherhood of fifteen monks was formed, called the "The Quindosim", whose sole purpose was to protect the sacred artifact, hoping that the Lanteans would return and reward the Sudarian people for completing their task. (SGA: "The Brotherhood")
  • First siege of Atlantis: The war between the Wraith and the Lanteans in the Pegasus galaxy escalates to the point where Atlantis is constantly under siege. The Lantean people decide to leave Atlantis for Earth by going through the Stargate. Atlantis, protected by a powerful force-shield, is sunk to the bottom of the ocean. The Lanteans leave Atlantis to find that the native peoples on Earth are quite primitive, preventing them from ever rebuilding their great civilization; the Lanteans then spread out some living out the rest of their lives with the native peoples, others making there way to the Stargate in Antarctica and some ascending. (SGA: "Before I Sleep")
  • When the Altairans lived on the surface of Altair, they were compelled to leave the surface and live underground. An Altairan named Hubbald created the underground station and the transfer device, to transfer all the Altarians from Humans to Androids. (SG1: "Tin Man")
Between 8,000 and 3,000 B.C.
Events
  • Their resources running low, the System Lords launch a darling attack against the Asgard and Furlings – two longstanding allies. The Goa'uld strike with surprise and land a crushing blow, but in the years that follow, their enemies fight back with vengeance. The Asgard deal the parasites several major setbacks, but do not press the attack, not fully realizing the danger that the Goa'uld pose to their galaxy and others. (SG1: "Living Gods: Stargate System Lords")
  • Ra, badly injured, flees Asgard pursuers into an alien system. There he finds a lush world inhabited by a large population of primitives that bow to his divinity. The world – Earth – contains a vast number of natives that are suitable for blending. Transferring his symbiote into an Egyptian boy, Ra is infused with new vigor and life. Ra quickly determines that humans provide a near ideal host for the Goa'uld. Using a Stargate brought with him, Ra claims the world of the Tau'ri as his own. (SG1: "Living Gods: Stargate System Lords")
  • Ra institutes a ritual of stewardship, allowing each System Lord to visit the Tau'ri world and claim followers, who are then taken to a world of the Goa'uld choice and used as breeding stock. In order to maximize the number of potential slaves, the power of the Goa'uld overlords are expanded, placing them in charge of the entire breeding worlds, such as Chulak. (SG1: "Living Gods: Stargate System Lords")
  • Ra divides the Earth by strict geographical lines, ensuring that no Lord encroaches upon another territory. A significant number of Goa'uld rise to power during this time and are chronicled in the mythology and history of the Tau'ri. (SG1: "Living Gods: Stargate System Lords")
  • The Goa'uld use the Tau'ri as a template to create the ultimate host called the Jaffa, who serve as incubators for the Goa'uld larva. In order to ensure their loyalty, the parasite serves as the Jaffa's immune system and will die without the symbiote. (SG1: "Children of the Gods")
  • Setesh (Seth), Osiris and Isis unsuccessfully attempt to assassinate Ra. Ra strips them of their status as System Lords and condemns them to an eternity of suffering. Both are forcibly removed from their hosts and placed in canopic jars. Setesh however, goes into hiding. (SG1: "The Curse")
  • The last remaining Lanteans either die out or ascend.
  • Omoroca arrives on Earth and attempts to prevent the Goa'uld from securing domination over Humanity. The Goa'uld Belus kills Omoroca, though it has been theorized that her influence led to the eventual Human rebellion. (SG1: "Fire and Water")
  • Tau'ri Rebellion: The Tau'ri learn the truth of their rulers. In a moment when the System Lords are at their most complacent, they overthrow their Jaffa warriors, killing several Goa'uld, and bury the Stargate. While the loss of the Tau'ri is a great affront to Ra, the continuing battle with the Asgard demands his attention again. With numerous breeding worlds throughout known space available to them, the Goa'uld are unconcerned with the Tau'ri and resolve to deal with the problem when it is convenient to do so. As time goes on however, the Tau'ri are slowly forgotten.
Around 3,000 B.C.
Events
Around 1,000 B.C.
Events
Around 1 A.D.
Events
Around 8 A.D.
Events
Around 109 A.D.
Events
Around 500 A.D.
Events
  • Merlin develops a phase-shifting device, later called "Arthur's Mantle", to hide himself in an alternate dimension to develop his Weapon in secret, supposedly where ascended beings cannot find him. When he left Earth, he left this device behind in "Avalon". (SG1: "Arthur's Mantle")
Around 1,000 A.D.
Events
  • Anubis retreats to Kheb and tricked Oma Desala into ascending him. As soon as Oma realized what she had done by ascending an evil being such as a Goa'uld, she tried to undo her work, but The Others stepped in. They sent him back "halfway" between corporeal existence and ascension, but he still remained a being of energy with eternal life. They also forbade him to use any knowledge or power obtained through ascension, unless he otherwise would have gained it as a Goa'uld. (SG1: "Full Circle", "Lockdown", "Threads")
  • The Asgard became physically incapable of achieving cell division through meiosis (sexual reproduction). Reproduction after this point was achieved exclusively through a process of enhanced cellular mitosis (cloning). (SG1: "Revelations")
Around 1004 A.D.
Events
Around 1098 A.D.
Events
Around 1298 A.D.
Events
Around 1504 A.D.
Events
Around 1565 A.D.
Events
Around 1600 A.D.
Events
  • Even though The Others had long established their rules of non-interference, as far as interacting with the lower planes of existence, Orlin communicated the knowledge of how to build a powerful weapon for defense against the Goa'uld. Velonans were not advanced enough on their own to take the responsibility of suddenly having such power, so after they used the weapon on the Goa'uld, they turned it on other planets for conquest. The Others destroyed the Velonans because they would have been destroyed by the Goa'uld if Orlin had not interfered and banished Orlin to the desolate planet. (SG1: "Ascension")
1643 A.D.
Events
Around 1700 A.D.
Events
  • The Sentinel is constructed on Latona; a weapon designed to protect the Latonans by making all Goa'uld who land on the planet vanish. It requires a caretaker to join with the machine to work. A flame in the city indicates that the caretaker lives. If the caretaker dies, the flame dies. (SG1: "The Sentinel")
1795 A.D.
Events
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