Final answer:
Medicaid is a federal program that provides health insurance to low-income Americans. It was created in 1965 as part of Lyndon Johnson's Great Society. Shirly Thomas was enrolled in Medicaid during this time.
Step-by-step explanation:
Medicaid is a federal program that was created in 1965 as part of Lyndon Johnson's Great Society. It provides health insurance to low-income Americans and is administered by states. Shirly Thomas was enrolled in Medicaid during the time it was created, which was in 1965.