U.S. returns stolen 525-year-old Columbus letter to VaticanU.S. returns stolen 525-year-old Columbus letter to Vatican By Philip PullellaReutersJune 14, 2018 VATICAN CITY (Reuters) - A 525-year-old copy of a letter by Christopher Columbus that was stolen from the Vatican was returned on Thursday after joint sleuthing by U.S. Homeland Security agents and Holy See antiquity exper..