A record-breaking gathering of 1,848 Sullivans and O'Sullivans took place in Castletownbere, Ireland, to claim the title for the largest assembly of people with the same surname.The event officially surpassed the previous Guinness World Record of 1,488 participants set by the Gallagher family in 2007.Attendees traveled from across the globe, including participants from the US and
Mexico, to celebrate their shared heritage and family history.