Many philosophers wrote down their philosophies about the government and people's right. A number of philosophers published books on the subject. They applied the idea of natural law to social and political analysis.
Many philosophers wrote down their philosophies about people's right. While it is true that the concept of human rights, as rights we possess because we are human, is relatively new, many thinkers have written about this in the past, even theorized the existence of rights that are our because we do exist and not because they are given by an authority.
Natural law is a theory that says that there are certain rights that we possess from the moment we born not because they are given to us, but simply because in the natural world we exist. Such theory evolved and included t the human rights law, as they are one of the fundamentals of ethics in our societies in these days.