Timeline of the Star Ocean Universe

Oldest History (15bya - 4bya)

 * Unknown: Rise of the galactic empire of Nede, exerting overwhelming influence over other all planets.
 * More than 4 billion years ago: Dr. Lantis is born.
 * More than 4 billion years ago: Filia Lantis is born.
 * 4 billion years ago: Rebellion against Nede by 24 planets. The Nedian government initializes the 10 Wise Men program to end the Rebellion.
 * ~4 billion years ago: The head of the 10 Wise Men program, Dr. Lantis, manipulates the project over a dispute with the government of Nede regarding the safety of his daughter, Filia. He later downloads his consciousness into the brain of the leader of the Wise Men, Indalecio.
 * ~4 billion years ago: Lantis, as Indalecio, wages war against Nede. Nede, already weakened from the rebellion, suffers immense civilian casualties as they must call home their inter-stellar military force to battle the Wise Men.
 * Less than 4 billion years ago: Victory for planet Nede. Some reports that the Wise Men are sentenced to spend the rest of their lives locked in Eternity Space (as the Wise Men are nearly immortal unless killed, this ensures they will be imprisoned until the end of the universe). Other sources say that the Wise Men, foreseeing defeat, hide themselves in Eternity Space before capture.

Very Ancient History (4bya - 700mya)

 * Unknown: Planets continue to reject Nedian hegemony - often violently. Nedian policy shifts to isolation from the rest of the galaxy. Nede's government constructs Energy Nede: an artificial planet protected and hidden from sensors by a force-field barrier. However, they continue to maintain a small bevy of research outposts throughout the galaxy.
 * Unknown: Following transfer of Nedians to Energy Nede, the government destroys their home planet of Nede.
 * 3,700,000,014 years ago: Modern Nedian calendar begins. This year becomes year 0 in the calendar.

Ancient History (700mya - 10kya)

 * ~700 million years ago: Milocinia, a Nedian research center of Heraldic weapons, is established somewhere outside of Energy Nede.
 * ~700 million years ago: An unidentified group of Nedian researchers on Milocinia are involved in a transport accident, landing in Expel several thousand years ago.
 * Less than 700 million years ago: Reema is born.
 * 699,999,565 years ago: Rena Lanford is born.
 * 699,999,563 years ago: The Heraldic laboratory of Milocinia suffers a catastrophic weapons failure. Reema exploits the known transporter malfunction to quickly send Rena to Expel, 700 million years later, hoping that her act of desperation will save Rena's life.
 * Unknown: Nede ceases all research outposts on other planets, withdrawing to total isolationism.

Pre-Terran Period (10kya - 2090 CE)

 * Unknown: An unidentified group of Nedian researchers from Milocinia unexpectedly land in Expel several thousand years ago following a transporter accident. Initially, the researchers take shelter in Cross Cave, but their ultimate fate is unknown.
 * 2087 CE: Professor Trillas Bachtein develops warp-speed technology.

Early Terran Alliance Period (2091 - 2452 CE)

 * 2091 CE: A standardized star date system, Special Date (SD), is created, with 2087 CE marked as year 0 SD in honor of Bachtein's achievement.
 * 2097 CE: Events of Star Ocean: The Last Hope.
 * 2099 CE: Formation of the Terran Alliance.
 * Unknown: Terran and Fellpoolian races colonize Expel and intermarry. They eventually lose contact with the Alliance.
 * 2395 CE: Ronixis Kenni is born.
 * 2416 CE: Earnest Raviede is born.
 * 2426 CE: Bowman Jean is born.
 * 2428 CE: Dias Flac is born.
 * 2429 CE: Noel Chandler is born.
 * 2429-33 CE: Events of Star Ocean.
 * 2430 CE: Opera Vectra is born. Celine Jules is born.
 * 2431 CE: Chisato Madison is born.
 * 2433 CE: Ashton Anchors is born.
 * 2434 CE: Claude Kenni is born.
 * 2437 CE: Precis Neumann is born.
 * 2438 CE: Reema's daughter arrives at the Shingo Forest in Expel. The daughter is found and adopted by Westa Lanford, who is barren, and names the girl Rena.
 * 2441 CE: Leon D.S. Geeste is born.
 * Unknown: Shingo Forest is raided by bandits. Dias Flac's family is killed and Dias gravely injured, but survives. He later abandons the village of Arlia to become a swordsman.

Star Ocean 2 (2453 - 2455 CE)

 * 2453 CE: The 10 Wise Men, having found escape from Eternity Space, land on Expel from within the Sorcery Globe.