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.
From Wikipedia, the free encyclopedia. Evan Thomas Spiegel (born June 4, 1990) is an American Internet entrepreneur. He is the co-founder and CEO of the mobile app Snapchat, which he created with Bobby Murphy and Reggie Brown while they were students at Stanford University. 1 Early life and education.