The Spartacus International Gay Guide is an international gay travel application and formerly an annually-published guide. It was founded by John D. Stamford in 1970 as a printed guide, before being bought by Bruno Gmünder in 1987 following investigations into Stamford's tax violations and promotion of paedophilia. It was sold to current owners GayGuide UG in 2017, whereupon the guide became digital only, with the printed version ceasing publication. Source: Wikipedia (en)