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The Expansionist Era, also known as the Expansion Period[2] or the Galactic Expansion Era,[3] was the term given to the years after the Galactic Republic formed, when transit between the Core Worlds was opened up by the newly-developed hyperdrive, and during the early expansion of the Republic. Also, the Tion Hegemony, at this time, was a proud civilization, and most of the worlds of the Allied Tion sector were settled.

The Myneyrsh–Psadan wars and the Wayland colonial war were fought on Wayland during this era, as well.[4][5]

Timeline of the Expansionist Era[]

  • 25,053 BBY
  • 25,000 BBY
    • The Perlemian Trade Route is founded, linking Coruscant with Ossus and the Tion Cluster.[2]
    • The Corellian Run is mapped, ensuring the economic dominance of Corellia in the forming Republic; the Corellian Run forms the southern border of the Slice.[2]
    • Republic scouts make contact with the Jedi Order on Ossus, and Jedi Master Haune Tiar accompanies the scouts back to the Republic. After conferring for several weeks, the Order pledge themselves to the Republic's service.[6]
    • With the development of the hyperdrive, Queen Rana Mas Trehalt allows for a wave of colonization to embark from Duros; one of the colony worlds is the planet Neimoidia,[2] which is colonized by a group of Duros led by Chla C'cHaan. (Approximate date)[7]
    • The Jedi Sar Agorn takes on a Padawan in Cope Shykrill, but Shykrill falls to the dark side of the Force and is struck down. (Approximate date)[8]
  • 24,500 BBY
    • The First Great Schism erupts in the Core Worlds between the Jedi Order and the Legions of Lettow, members of the Jedi Order who seek to use the dark side against the Order's wishes. The Legions' leader Xendor originally asked for permission to create an academy for the study of Force techniques outlawed by the Jedi, and after their refusal he founded the Legions on Lettow—prompting the Order to declare war on them.[9]
    • The Schism sees Xendor's death at Columus, and the conflict ends not long afterwards as the Order invaded Lettow.[9]
  • 24,000 BBY
    • The Tionese War begins: the Tionese unite as the Honorable Union of Desevro & Tion and attack the Republic, storming down the Perlemian. The Republic begins producing warships at Core shipyards, but the Tionese push into the heart of the Republic and bomb numerous worlds. The Republic ultimately repels the Tionese with a desperate counterattack by numerous Core systems, sparking a series of offensives and counteroffensives that last around a century.[9]
  • 23,900 BBY
    • The Tionese War comes to an end as the Republic devastates the worlds of the Tion Cluster, though the Republic's sterilization of Desevro prompts the Jedi to break with the Republic.[9]
    • The Republic negotiates with the Jedi, who eventually agree to serve as the Republic's watchmen.[9]
  • c. 23,643 BBY
    • The planet Uphrades experiences a period of significant volcanic activity, resulting in especially fertile soil tens of thousands of years later.[10]
  • c. 22,800 BBY
    • A Jedi scout follows the Force's call into the Unknown Regions, discovering the crystal world of Ilum. Ilum soon becomes an important religious world for the Jedi Order.[2]
  • c. 22,000 BBY
  • 20,100 BBY
  • 20,000 BBY



Notes and references[]

Expansionist Era
(25,053 BBY20,000 BBY)
Galactic timeline

Previous: Pre-Republic era ( –25,053 BBY)

Next: Great Manifest Period (20,00017,018 BBY)

Years of the Expansionist Era
25,053 BBY · 25,000 BBY · 24,953 BBY · 24,500 BBY · 24,000 BBY
23,900 BBY · 23,643 BBY · 22,800 BBY · 22,000 BBY · 20,100 BBY
20,000 BBY