Before the creation of London Vegan Meetup, there was VEG-London (previously know as Veggie Socials) - a vegetarian and vegan social group run via an online mailing list; and on the second Sunday of every month, VEG-London hosted a lunch at one of London's vegetarian and vegan friendly venues.
London Vegan Meetup initially re-established this tradition at Pogo Cafe in Hackney. But after Pogo's closure, it moved to Kabaret at Karamel - whereI have been it running ever since.
(This event is currently on hiatus. See the London Vegan Meetup calendar for current events.)