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.
June 2014. Snapchat launches Our Story, a feature that lets you add Snaps to a single, event-based Story. The idea is that whenever youâre at a big event, an option to add to that eventâs Story will appear just below the option to add it to your own Story.