This report discusses the social and historical developments that led to the establishment of the National Health Service (NHS) in the UK in 1948. It evaluates the circumstances for and against the creation of NHS and the founding principles behind it. The report covers the main developments from the early 1800s onwards, including the establishment of poor laws, lack of medical facilities, and the need for quality care during and after World War II. The three founding principles of NHS are discussed in detail, including the provision of free services, meeting the needs of every person, and being based on clinical requirements rather than the ability to pay.