Question: who was president of the united states in 1963
Answer: Lyndon Baines Johnson ( / ˈlɪndən ˈbeɪnz / ; August 27 , 1908 -- January 22 , 1973 ) , often referred to by his initials LBJ , was an American politician who served as the 36th President of the United States from 1963 to 1969 , assuming the office after having served as the 37th Vice President of the United States from 1961 to 1963 .