Q. Which of the following component of International Bill of Human Rights entered into force in the last?
Answer: Covenants
Notes: International Bill of Human Rights consists of Universal Declaration of Human Rights (adopted in 1948), the International Covenant on Civil and Political Rights (1966) with its two Optional Protocols and the International Covenant on Economic, Social and Cultural Rights (1966). The two covenants entered into force in 1976, after a sufficient number of countries had ratified them.