<human>:  What is the history of human rights?
<bot>: The history of human rights is a long one, stretching back over thousands of years. It is believed that the earliest forms of human rights were laid out in ancient Greek and Roman civilizations in the form of natural law, which emphasized moral principles and values such as freedom, justice, and equality. Over time, notions of human rights spread across Europe and eventually to the world. Later, the Magna Carta and other documents laid out fundamental rights that were to be upheld by governments. The modern era of human rights began with the adoption of the Universal Declaration of Human Rights in 1948, which outlined the basic principles of human rights and defined them in both moral and legal terms. Human rights have since become an important part of international law, and countries around the globe have ratified treaties and put into place laws to ensure the protection of human rights around the world.