Final answer:
The initial Social Security Act passed in 1935 did not include disability insurance. This program was added in 1956, expanding the scope of social insurance provisions under Social Security.
Step-by-step explanation:
The initial Social Security Act, passed in August 1935, did not include a disability insurance program as part of its provisions. President Franklin D. Roosevelt backed this act, which created a government insurance program primarily for the elderly, the temporarily unemployed, and impoverished families with children. It established a system of social insurance, including old-age pensions, unemployment insurance, and aid for certain impoverished groups. However, it wasn't until 1956 that disability insurance was formally added to the Social Security program. The Johnson administration built further upon social welfare by creating Medicare and expanding disabled coverage through amendments to the Social Security Act.
To summarize, the initial Social Security Act focused on the elderly, the unemployed, and direct financial aid for specific groups in need but initially excluded a program specifically designated for the disabled.