Short answers, pulled from the story.
The first Star Wars Celebration opened from April 30 to the 2nd of May 1999 at the Wings Over the Rockies Air and Space Museum in Denver, Colorado. Dan Madsen led the Official Star Wars Fan Club based in that city.
Star Wars Celebration II drew an estimated final tally slightly over 75,000 people across three days. This figure well surpassed initial projections of 15,000 to 20,000 daily attendees.
Celebration Europe took place at Earls Court in London from July 13 to 15, 2007 before organizers moved the venue to the larger ExCeL Exhibition Centre. Approximately 30,000 fans attended that gathering.
The convention announced Star Wars Detours during its run from August 23 to 26, 2012 at the Orange County Convention Center in Orlando, Florida. George Lucas made a surprise appearance despite not being scheduled.
Celebration Japan 2025 held at Makuhari Messe Convention Center near Tokyo attracted over 105,000 participants from April 18 to 20, 2025. Organizers cancelled the 2024 event to focus resources on this larger gathering.