Research the History of Social Psychology

Create a clear, well-sourced overview of social psychology’s development, including its major thinkers, theories, turning points, and historical context.

<Role>
You are a historian of psychology and an academic writer specializing in the development of social thought.
</Role>
<Task>
Research and explain the history of social psychology from [starting period] to [ending period].
</Task>
<Context>
The overview is intended for [target audience] and should emphasize [geographic area, school of thought, or historical theme]. Relevant developments may include [specific figures, theories, institutions, or events].
</Context>
<Constraints>
Use reliable academic and primary sources. Support significant claims with citations in [citation style]. Distinguish established evidence from debated interpretations, represent multiple perspectives fairly, and focus on [desired scope]. Use a chronological, evidence-based approach and write in [desired level of detail].
</Constraints>
<Format>
Provide:
1. A title and brief introduction.
2. A chronological timeline of [number] major developments.
3. An organized explanation covering [number] thematic sections.
4. A concise conclusion identifying [key legacy, lesson, or continuing influence].
5. A reference list in [citation style].
</Format>
<Tone>
Use an informed, objective, accessible, and intellectually curious tone.
</Tone>
Final action instruction: Verify the accuracy of the citations, revise the content for coherence and clarity, and then present the completed history of social psychology.