W. I. Thomas was an American sociologist and a founding figure of the Chicago School whose work helped establish the empirical study of immigration, social disorganization, and the definition of the situation in American sociology. With Florian Znaniecki, he co-authored The Polish Peasant in Europe and America (1918 to 1920), a pioneering study that used personal letters, diaries, and other life-history documents to analyze how Polish immigrants and their families adapted to social change across two continents. Thomas is best remembered for the Thomas theorem, the principle that if people define situations as real, those situations become real in their consequences, a formulation that became a foundational statement of the idea that subjective interpretation shapes social outcomes.
Facts
BirthplaceRussell County, Virginia, U.S. 1 Death PlaceBerkeley, California, U.S. 1 Nationality / Culture Defining ContributionFormulated the Thomas theorem: if men define situations as real, they are real in their consequences 1 Notable WorkThe Child in America (1928, with Dorothy Swaine Thomas); foundational figure in symbolic interactionism 1 Connections
Associated With
Source W. I. Thomas (Wikipedia)
Institutions Informed
Source Encyclopedia.com: Thomas, Dorothy Swaine
Source Encyclopedia.com: Sutherland, Edwin H.
Znaniecki collaborated with Thomas on The Polish Peasant in Europe and America, one of the foundational empirical studies of American sociology.
Shaped By
Source W. I. Thomas (Wikipedia)
In the Other Atlases
Nationality
Also in Geography Atlas: the nationality of this subject.
Sources
1. W. I. Thomas (Wikipedia)
Wikipediainfobox, Born field
13 August 1863, Russell County, Virginia, U.S.
infobox, Died field
5 December 1947 (aged 84), Berkeley, California, U.S.
lead sentence
William Isaac Thomas (August 13, 1863 - December 5, 1947) was an American sociologist, understood today as a key figure behind the theory of symbolic interactionism.
lead sentence, notable-work citation
William Isaac Thomas (August 13, 1863 - December 5, 1947) was an American sociologist, understood today as a key figure behind the theory of symbolic interactionism.
article body, Thomas theorem sentence
If men define situations as real, they are real in their consequences.
English Wikipedia, intro text
Collaborating with Polish sociologist Florian Znaniecki, Thomas developed and influenced the use of empirical methodologies in sociological research and contributed theories to the sociology of migration.
Associated With: Harvard University, Article text
After leaving Harvard as a lecturer, Thomas gradually withdrew into retirement.
Shaped By: Symbolic Interactionism, Lead
William Isaac Thomas (August 13, 1863, December 5, 1947) was an American sociologist, understood today as a key figure behind the theory of symbolic interactionism.
View the Source Wikidata: W. I. Thomas
Wikidata Q1323100, class allow-list match, case-insensitive label variant (w-bbfill-smallsix2-0926/resolve_ci.ps1)View the Source Encyclopedia.com: Sutherland, Edwin H.
Encyclopedia.comInstitutions Informed: Edwin Sutherland, Criminology, influencesQuote, Institutions Informed: Edwin Sutherland, Criminology, influences
his work reflects the influences of the giants of American sociology: Cooley, Thomas, Park, Burgess, and Mead.
Encyclopedia.com: Thomas, Dorothy Swaine
Encyclopedia.comInstitutions Informed: Dorothy Swaine Thomas, Biography, mentors (W. I. Thomas)Quote, Institutions Informed: Dorothy Swaine Thomas, Biography, mentors (W. I. Thomas)
one of the founders of American sociology, W. I. [William Isaac] Thomas
Reader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.