Centers for Medicare and Medicaid Services: "History"
Read the brief overview of Medicare and Medicaid - two governmental programs that provide medical and health-related services to low-income and elderly citizens. They are the largest "entitlement" programs in the United States. Then, download and read the Key Milestones in CMS Programs.
Click https://www.cms.gov/About-CMS/Agency-Information/History/index.html?redirect=/History/ link to open resource.