Can't answer this, since we don't have the article. If there are details about how black people in the north were freed from slavery in most states, while slavery was still allowed in the south, you could use that.
They get campaign contributions, endorsements, testify at congressional hearings, help write legislation/laws, litigation, amicus curiae etc.
An interest group is an organization made up of people who share at least one common interest and who work towards its goal
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The answer is Japan / Vietnam
Answer: a form of Japanese drama that has a specific style of dancing and singing
The Mayas were a Mesoamerican civilization that was established in the Yucatán Peninsula, on what is today southern Mexico, parts of El Salvador, Belize and Honduras and Guatemala. This ancient civilization has been recognized for its incredible advancement in architecture and for how organized and advanced they were as a civilization as a whole. This empire initiated rougly around the year 2000 BC. Among other things, Mayans were great believers in their gods and they built enormous, and now famous, pyramid-temples in honor of these gods. One such god was the serpent god Quetzalcoatl and another example was the pyramid for the god of rain, Chak. Also, the Mayans were known for their social and political organization and structure. Until the 900, the Mayans were being governed by several kings and rulers, each of a region of the vast empire. One of the last ones in record was K´ak´ Tiliw Chan Yopaat, before the decline of the Mayan Empire. It is not certain why the Mayans declined. There are many research studies on the subject. Some scientists believe that it might have been a drought that depleted the region of resources and water, some that it was disease and some overpopulation within the empire. Some also mention corruption and disorder. This happened around the 9th century A.D.