In the United States, sociology was first taught as an academic discipline at the University of Kansas in 1890, at the University of Chicago in 1892, and at Atlanta University in 1897.
Source (www.sparknotes.com/sociology/introduction-to-sociology/section1.rhtml)
If a cluster of people stand gazing upward, passersby will often pause to do likewise. This best illustrates:
d. the chameleon effect
The chameleon effect is when one mimics the behaviors of another in a proximal social environment.