393 U.S. 503
E176887
393 U.S. 503 is the official United States Reports citation for the landmark 1969 Supreme Court decision in Tinker v. Des Moines, which established strong First Amendment free speech protections for public school students.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 393 U.S. 503 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1567676 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: 393 U.S. 503 Context triple: [Tinker v. Des Moines Independent Community School District, citation, 393 U.S. 503]
-
A.
Katzenbach v. Morgan
Katzenbach v. Morgan is a 1966 U.S. Supreme Court case that upheld Congress’s power under the Fourteenth Amendment to prohibit certain state voting restrictions, reinforcing federal authority to protect voting rights.
-
B.
Katzenbach v. McClung
Katzenbach v. McClung is a 1964 U.S. Supreme Court case that upheld the federal government’s power to prohibit racial discrimination in local restaurants under the Civil Rights Act of 1964.
-
C.
Bolling v. Sharpe
Bolling v. Sharpe is a 1954 U.S. Supreme Court case that held racial segregation in Washington, D.C. public schools unconstitutional under the Fifth Amendment’s Due Process Clause.
-
D.
Nixon v. Fitzgerald
Nixon v. Fitzgerald is a 1982 U.S. Supreme Court case that established absolute immunity from civil damages liability for a President’s official acts.
-
E.
United States v. Darby
United States v. Darby is a 1941 U.S. Supreme Court case that upheld federal labor regulations under the Commerce Clause and marked a broad expansion of federal power over economic activity.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: 393 U.S. 503 Target entity description: 393 U.S. 503 is the official United States Reports citation for the landmark 1969 Supreme Court decision in Tinker v. Des Moines, which established strong First Amendment free speech protections for public school students.
-
A.
Katzenbach v. Morgan
Katzenbach v. Morgan is a 1966 U.S. Supreme Court case that upheld Congress’s power under the Fourteenth Amendment to prohibit certain state voting restrictions, reinforcing federal authority to protect voting rights.
-
B.
Katzenbach v. McClung
Katzenbach v. McClung is a 1964 U.S. Supreme Court case that upheld the federal government’s power to prohibit racial discrimination in local restaurants under the Civil Rights Act of 1964.
-
C.
Bolling v. Sharpe
Bolling v. Sharpe is a 1954 U.S. Supreme Court case that held racial segregation in Washington, D.C. public schools unconstitutional under the Fifth Amendment’s Due Process Clause.
-
D.
Nixon v. Fitzgerald
Nixon v. Fitzgerald is a 1982 U.S. Supreme Court case that established absolute immunity from civil damages liability for a President’s official acts.
-
E.
United States v. Darby
United States v. Darby is a 1941 U.S. Supreme Court case that upheld federal labor regulations under the Commerce Clause and marked a broad expansion of federal power over economic activity.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
United States Reports citation
ⓘ
United States Supreme Court decision ⓘ |
| appliesTo | public school students ⓘ |
| areaOfLaw |
constitutional law
ⓘ
education law ⓘ |
| arguedDate | 1968-11-12 ⓘ |
| caseName | Tinker v. Des Moines Independent Community School District ⓘ |
| citation | 393 U.S. 503 ⓘ |
| citationStyle | U.S. Reports official citation ⓘ |
| constitutionalProvisionInterpreted | First Amendment to the United States Constitution ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| court | Supreme Court of the United States ⓘ |
| decisionDate | 1969-02-24 ⓘ |
| decisionType | civil rights case ⓘ |
| dissentingOpinionBy |
Hugo Black
ⓘ
linked to:
Hugo L. Black
John Marshall Harlan II ⓘ
linked to:
John M. Harlan II
|
| docketNumber | 21 ⓘ |
| factualBackground | Students were suspended for wearing black armbands to protest the Vietnam War ⓘ |
| fullCitation | Tinker v. Des Moines Independent Community School District, 393 U.S. 503 (1969) ⓘ |
| holding |
Public school students do not shed their constitutional rights to freedom of speech or expression at the schoolhouse gate
ⓘ
School officials may not censor student expression unless it would materially and substantially disrupt the work and discipline of the school ⓘ |
| joinedByInMajority |
Byron White
ⓘ
linked to:
Byron R. White
Earl Warren ⓘ Potter Stewart ⓘ Thurgood Marshall ⓘ William J. Brennan Jr. ⓘ William O. Douglas ⓘ |
| jurisdiction | federal ⓘ |
| landmark | true ⓘ |
| legalIssue |
First Amendment free speech in public schools
ⓘ
student symbolic speech ⓘ |
| majorityOpinionBy | Abe Fortas ⓘ |
| originatingJurisdiction | Des Moines, Iowa ⓘ |
| page | 503 ⓘ |
| parallelCitation |
21 L. Ed. 2d 731
ⓘ
89 S. Ct. 733 ⓘ |
| petitioner |
Christopher Eckhardt
ⓘ
John F. Tinker ⓘ
linked to:
Mary Beth Tinker
Mary Beth Tinker ⓘ |
| precedentFor | student free speech cases in the United States ⓘ |
| reporter | United States Reports ⓘ |
| respondent | Des Moines Independent Community School District ⓘ |
| shortName | Tinker v. Des Moines ⓘ |
| standardEstablished | material and substantial disruption test ⓘ |
| subjectMatter |
freedom of speech
ⓘ
student rights ⓘ symbolic protest ⓘ |
| volume | 393 ⓘ |
| year | 1969 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: 393 U.S. 503 Description of subject: 393 U.S. 503 is the official United States Reports citation for the landmark 1969 Supreme Court decision in Tinker v. Des Moines, which established strong First Amendment free speech protections for public school students.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.