1921
- James Bryce's Modern Democracies is published.
- Sigmund Freud's Group Psychology and the Analysis of the Ego is published.
- Robert E. Park's and Ernest Burgess's The Science of Sociology is published.
- Alfred Radcliffe-Brown's The Andaman Islanders is published.
- R.H. Tawney's The Acquisitive Society is published.
- Max Weber's The City is published.
- Ludwig Josef Johann Wittgenstein's Tractatus Logico-Philosophicus is published.
- Edward C. Hayes serves as president of the ASA.
- National Council for the Social Studies is founded
Read more about this topic: 1920s In Sociology