The television series Star Trek: Enterprise premiered on UPN, introducing viewers to the early days of Starfleet exploration in the Star Trek universe.
The final episode of Star Trek: Enterprise aired, concluding the show's four-season run and wrapping up various storylines.
The first Earth starship capable of Warp 5, the Enterprise NX-01, is launched, marking humanity's first step towards deep space exploration.
Captain Archer and the crew of Enterprise make first contact with the Rigelians, establishing initial diplomatic relations.
A mysterious alien species called the Xindi attack Earth with a superweapon, causing massive destruction and prompting a mission to prevent further attacks.
Enterprise embarks on a long-term mission into the Delphic Expanse to find and stop the Xindi weapon and protect Earth.
Following cooperation during the Xindi crisis, humans and several alien species discuss forming the Coalition of Planets, a precursor to the United Federation of Planets.
Enterprise becomes involved in the Temporal Cold War, facing threats from future factions altering the timeline.
Starfleet establishes Base Jupiter as a forward operating base in the Delphic Expanse to support exploration and defense operations.
Enterprise aids in resolving Klingon internal conflicts, leading to a peace treaty between conflicting factions.
Enterprise becomes embroiled in a Vulcan political upheaval involving a radical reformation movement challenging Vulcan traditions.
After completing its mission in the Delphic Expanse and significant contributions to interstellar diplomacy, Enterprise returns to Earth.