Borg Collective
- Appearance: Collective organism formed of trillions of individual assimilated beings
- Homeworld: Arehaz (Star Trek: Destiny)
- Cultural notes
- Construction tends towards massive geometric forms
History
- c.15th century: Minor presence in Delta Quadrant (VOY: "Dragon's Teeth")
- 2260s: Attack on El-Auria
- By c.2300s: Early rumors of Borg begin spreading through Federation space upon arrival of El-Aurian diaspora (VOY: "The Raven")
- 2364: Undetected scouts first reach near-Alpha Quadrant space, attacking and assimilating outposts in Romulan Neutral Zone (TNG: "The Neutral Zone")
- 2365: First identified by Romulan deep-Beta listening posts (TNG Short Story: "Suicide Note")
- 2365: First direct contact with Federation (TNG: "Q Who")
- Direct encounter between Borg Cube vessel, USS Enterprise (NCC-1701-D) at system J-25 in deep Beta Quadrant (TNG: "Q Who")
- January 1-2, 2367: Attack against core Federation territory (TNG: "The Best of Both Worlds")
- October 15-19, 2367: Attack against outlying Beta Quadrant Federation territories (TNG Novel: Vendetta)
- Penzatti (TNG Novel: Vendetta)
- Initial vessel repelled by planet killer counterattack (TNG Novel: Vendetta)