In 1 ABY, during the height of the Galactic Civil War, Princess Leia used the holiday to celebrate all those who had died in the name of the Rebel Alliance. On this day, she arrived just on the outskirts of Coronet on Corellia on the Millennium Falcon to a crowd of Rebel soldiers and sympathizers. A fountain with a statue of Jedi MasterYoda had been installed for this event, to honor the Jedi who had served valiantly in the Clone Wars.
Guarded by members of the Rebel Alliance Honor Guard, the princess thanked the crowd for their continued support and asked them to celebrate those lost in the war, and even called out a few of the soldiers present by name. After visiting for a short time, she boarded the Falcon with Han and Chewie to leave the planet. As she departed, Rebel starships flew by as fireworks exploded overhead.
During the Remembrance Day festivities, CaptainDerlin tasked loyal Rebels to graffiti tag Imperialpropaganda posters around the city, and put up posters which proclaimed, "Remember Alderaan." MajorCarlist Rieekan tasked Rebel traders to gather supplies from crashed Rebel shuttles, and gave entertainers the option to entertain Rebel soldiers in the Coronet cantina. Wedge Antilles also participated in the Remembrance Day festivities, tasking a Rebel operative to rescue six Rebel pilots from a prison facility in an Imperial Fortress.
Due to Coronet's sympathetic nature to the Rebellion, the Empire did little to stop the Remembrance Day festivities from taking place. However, there were reports of Imperial soldiers gunning down those who vandalized Imperial posters.
Once every hour, the Millennium Falcon landed and Princess Leia called out one of the Rebel-aligned player characters present at the celebration. This player received a special badge and the title "Hero of Remembrance Day."
This changed slightly in the 2009 celebration. Leia would land every 15 minutes and call out three players, this time receiving the title "Champion of Remembrance Day." Players would also receive a Return of the Jedimovie poster to commemorate the six year anniversary of Star Wars Galaxies. In addition, the 2009 celebration included additional quests for players. The 2010 representation of Remembrance Day remained widely unchanged, except it offered players new badges, a few extra rewards, and a new title, "Chosen of Remembrance Day."
The naming of Remembrance Day seems to be derived from the Commonwealth holiday of the same name, which is celebrated on November 11th each year, the Commonwealth equivalent of Veteran's Day in the U.S.