Social Psychology Key Figures. 1  Allport (1920) â Social Facilitation. 2  Bandura (1963) Social Learning Theory. 3  Festinger (1950) â Cognitive Dissonance. 4  Tajfel (1971) â Social Identity Theory. 5  Weiner (1986) â Attribution theory. 6  Milgram (1963) â Shock Experiment. 7  Haney, Banks, Zimbardo (1973) â Prison Study.
Founded in 2012 by two Stanford students, Snap is the Los Angeles-based technology and social media company behind messaging app Snapchat.
The Apollo 9 lunar module, Spider, flies away from the command module, Gumdrop. Apollo 9 launched March 3, 1969, with a crucial mission: to fly the lunar module for the first time. The spacecraft had been tested successfully during the unmanned Apollo 5 mission. This would be the first time a crew would be aboard the spacecraft.