On 23 October 1910, Argentina recognized the Portuguese Republic, soon after the start of the Portuguese Revolution. In June 1947, the First Lady of Argentina, Eva Perón, paid a visit to Portugal as part of her "Rainbow Tour". In July 1997, Portuguese Prime Minister, António Guterres, paid an official visit to Argentina, becoming the first Portuguese head-of-state to do so. In October 1998, Argentine President, Carlos Menem, paid a visit to Portugal to attend the 8th Ibero-American Summit in Porto. There have been several high-level visits between leaders of both nations since the initial visits.