This document provides an overview of the key concepts and historical development of human rights law. It discusses how human rights are inherent to all humans, regardless of attributes. The three main sources of international human rights law are identified as international conventions, customary international law, and general principles of law. The document then summarizes the major milestones in the development of the international human rights system, including the UN Charter, Universal Declaration of Human Rights, International Covenant on Civil and Political Rights, and International Covenant on Economic, Social and Cultural Rights.