The USS Olympia was launched and fought an Iconian battlegroup. Later in the same year, she fought in several engagements during the war, helping to end it.
January: USS Endurance undergoes refit at Starbase 53.
2411
January 4th: USS Endurance is destroyed the Romulan Star Empire over the planet Delta Teni IV
August 28: Members of the Advanced Starship Design Bureau pay a visit to Canterlot High School to start a contest over designing the Equestria Girl-class.
September 30: A CHS student named Creme Latte wins the contest. She is awarded a scholarship to Starfleet Academy. Her design gets approved for the new class.
October 8: Unfortunately, the project received some setbacks as Starfleet decided to postpone the project due to having to use resources for the Aridaginatan War.
2414
2415
2416
November 20: Lieutenant Commander Azuka Shoichet, head engineer of San Francisco Fleet Yards (and also the daughter of Vice AdmiralBecky Ray Shoichet) grow fond of the blueprints for the USS Equestria Girl. She would spend the next year lobbying with both the Starfleet Engineering Corps and Starfleet Command for the project to be revived.
2417
Thanksgiving: Starfleet Command finally approves the revival of the Equestria Girl Class Development Project. Azuka Shoichet gets appointed as head of the project.
2418
February: The keel of the USS Equestria Girl is finally laid. Construction begins on the ship. It would take two years before the ship is completed in 2420.