August 1, 2016, marked the 60th anniversary of the Social Security Disability Insurance (SSDI) program, signed into law by President Dwight D. Eisenhower in 1956.
Source: Social Security: Providing disability benefits for 60 years
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Social Security Disability is available to anyone who paid in enough taxes to qualify. SSI or Supplemental Security Income is available to those who meet certain income and asset guidelines. You must prove that you medically qualify for both disability programs.