I want to know the answer to the following question:
When did anthropologists stop looking for cultures far away and instead began to "look across the tracks"?
All the background I'm provided with is that "For example, the classic of urban anthropology, Ulf Hannerz in the introduction to his seminal Exploring the City: Inquiries Toward an Urban Anthropology mentions that the "Third World" had habitually received most of attention; anthropologists who traditionally specialized in "other cultures" looked for them far away and started to look "across the tracks" only in late 1960s.". Is that enough to answer the question?
Answer: yes