Fans worldwide are marking the occasion with events to celebrate #U240 - these are some we know about already, if you are doing something, or know of others who are gathering, or doing something special then please add the info into this topic.
(will keep updating this post with additions as they come in..)
@U2Valencia had a great #U240 party earlier this year, and @HarryKantas wrote this great review of it for the Zoo
@atu2 are having a gathering at The Rock & Roll Hall Of Fame in Cleveland, USA on 24/25 September : link
@atu2 are also having a party in Dublin on September 24