3/31/1961

“31.03.61 As provided for by the Sugar Act of 1948, as amended on this date, the President [John F. Kennedy]  issued Presidential Proclamation 3401, determining that out of national security considerations the Cuban sugar quota for 1961 was to be canceled.” [Pro Embargo]

“John F. Kennedy (D). Timeline,” Cuba versus Blockade: Cuban People’s website, 2007