51 years ago today, on May 6, 1974 (April 15, 1974 lunar calendar), German Chancellor Brandt resigned. Brandt was born in Lübeck in 1913 like Brandt. Joined the Social Democratic Party in 1929. Withdrawn in 1931 and joined the Socialist Workers Party. After Hitler came to power in 1933, he went underground. After exile in Denmark and Norway, he made a career as a journalist and studied modern history and philosophy at the University of Oslo in Norway. He also traveled to Spain, the Netherlands, Belgium, England, France and Czechoslovakia to liaise with socialist exiles. He became a Norwegian citizen in 1938. In 1946, he served as the press commissioner of the major of the Norwegian military mission in Berlin. In 1947, he regained German citizenship. In the same year, he joined the Social Democratic Party and served as the representative of the Executive Committee of the Social Democratic Party in Berlin. Federal Member of Parliament from 1949 to 1957. Mayor of West Berlin from 1957 to 1966. Vice-Chairperson of the Social Democratic Party from 1962 to 1964, Chairperson from 1964 to 1987, and later Honorary Chairperson. He was twice nominated by the Social Democratic Party as the party's candidate for Federal Chancellor in 1961 and 1965. Deputy Prime Minister and Minister of Foreign Affairs from 1966 to 1969, and began to pursue a policy of reconciliation with Eastern European countries. Prime Minister from 1969 to 1974. During his tenure, he signed the Treaty of Renunciation of the Use of Force with the Soviet Union and the Treaty of Foundation Relations with the Democratic Republic of Germany, etc., and was awarded the 1971 Nobel Peace Prize for "easing tensions in Europe after World War II." On May 6, 1974, he was forced to resign due to the revelation that his private secretary, Guillaume, was a spy for the GDR. In 1976, he was elected Chairperson of the Socialist International. Died on October 8, 1992. Author of "Peace Policy in Europe", "Memoirs of Brandt", etc. Visited China in 1984.