Given the task definition and input, reply with output. In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

What happened ten years ago?, Context: Many Pygmies belong from birth to Bantus in a relationship many refer to as slavery. The Congolese Human Rights Observatory says that the Pygmies are treated as property the same way "pets" are. On December 30, 2010, the Congolese parliament adopted a law for the promotion and protection of the rights of indigenous peoples. This law is the first of its kind in Africa, and its adoption is a historic development for indigenous peoples on the continent.
the Congolese parliament adopted a law for the promotion and protection of the rights of indigenous peoples