Social Security Administration
The Social Security program came into being with President President Franklin Delano Roosevelt's signing of Social Security Act on August 4, 1935.
"The Social Security Administration (SSA) came into being on July 16, 1946. Prior to this time, the Social Security program was administered by a three-person Social Security Board. The Board was abolished in a government reorganization and replaced by the SSA, with a single Commissioner as its head." [1]