The following events occurred in January 1961:
January 1, 1961 (Sunday) The British farthing coin, used since the 13th century, and worth 1/4 of a penny, ceased to be legal tender. Australia became the second nation to permit the sale of the birth control pill, and the first to allow the Scherer oral contraceptive, with the brand name of Anovlar. The G.D. Searle pill Enovid had been permitted in the United States in May 1960.
January 2, 1961 (Monday) Cuba's Prime Minister, Fidel Castro, demanded that the United States Embassy in Havana reduce its staff from 87 to no more than 11 no later than Wednesday. U.S. President Eisenhower ended diplomatic relations with Cuba the next day. In the Rose Bowl, the #1 ranked University of Minnesota Gophers were upset by the #6 ranked University of Washington Huskies, 17–7, before a crowd of 97,314 fans in Pasadena. The loss, however, did not affect Minnesota's recognition as the unofficial champion of the 1960 NCAA University Division football season, since the final AP and UPI polls were taken prior to the postseason bowl games.
January 3, 1961 (Tuesday) In the worst airplane crash in the history of Finland, all 25 persons on Aero OY Flight 311 died when the DC-3 crashed shortly after takeoff from Vaasa while en route to Kronoby. The plane impacted in trees away, near the village of Koivulahti. A subsequent investigation concluded that both the pilot and co-pilot had been drinking as recently as five hours before takeoff. U.S. Marines, guarding the United States Embassy in Cuba, lowered the American flag for the last time for what would be more than half a century, as the Embassy closed and the United States and Cuba severed diplomatic relations. On August 14, 2015, the three Marines who had lowered the flag—Larry Morris, James Tracey, and Francis "Mike" East—would be present at the Embassy and would hand the same flag to three new U.S. Marine guards to be raised again. The 87th United States Congress began, with the Democratic Party having a 65 to 35 majority in the U.S. Senate, and 263 to 174 majority in the House of Representatives, although Southern Democrats in 11 states from the Deep South (100 representatives and 21 senators) were conservative. The Space Task Group, charged by NASA to conduct Project Mercury and other human spaceflight programs, officially became a separate NASA field element directly under NASA Headquarters. Prior to this time, the Space Task Group was organized under the Goddard Space Flight Center and was administratively supported by the Langley Research Center. As of this date, the personnel strength of Space Task Group was 667. At the United States National Reactor Testing Station near Idaho Falls, Idaho, the atomic reactor SL-1 exploded, killing three military technicians.
January 4, 1961 (Wednesday) East Germany's Chancellor and Communist party chief, Walter Ulbricht, held a secret emergency meeting of the Politburo of his Socialist Unity Party of Germany, the SED, and told his fellow party leaders that East Germany's own economic failures accounted for 60% of the departure of East Germans to West Germany. He warned the SED that the nation needed to take action to fix housing shortages, low wages, inadequate pensions, and the six-day workweek before the end of the year. Ulbricht also criticized East German schools, pointing out that 75% of the people who left were younger than 25. Most importantly, he created a task force to stop the loss of refugees; the solution would come in the form of the Berlin Wall and the heavily-guarded border in August. Michael Goleniewski, an officer of Poland's Army counter-espionage unit GZI WP (Główny Zarząd Informacji Wojska Polskiego or "Main Directorate of Information of the Polish Army"), who also spied on Poland as a double agent for the Soviet Union's KGB, defected to the American CIA office in West Berlin, becoming, in effect, a triple agent. Died: Erwin Schrödinger, 73, Austrian physicist and pioneer in quantum mechanics, 1933 Nobel laureate for his discovery of the Schrödinger equation. In 1935, he would propose a popular analogy that is referred to now as Schrödinger's cat.