Sixty-six nations, representing 80% of world trade, attended the official opening on May 4, 1964, at the Palais des Nations. Despite several disagreements over details, the director general announced the round’s success on May 15, 1967, and the final agreement was signed on June 30, 1967—the last day permitted under the Trade Expansion Act. The round was named after U.S. President John F. Kennedy, who was assassinated six months before the opening negotiations.[1]