1820 United States census
E805563
The 1820 United States census was the fourth national population count of the U.S., documenting demographic data such as population size, age, sex, and slavery status across the states and territories at that time.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 1820 United States census canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9468078 — 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: 1820 United States census Context triple: [Census Day, hasCensusDay, 1820 United States census]
-
A.
1810 United States census
The 1810 United States census was the third national population count conducted by the U.S. federal government, used to apportion representation and gather demographic data on the young nation.
-
B.
1840 United States census
The 1840 United States census was the sixth national population count, documenting demographic data across the expanding states and territories of the U.S. prior to significant pre–Civil War growth and change.
-
C.
1800 United States census
The 1800 United States census was the second national population count conducted by the U.S. federal government, providing an early demographic snapshot of the young nation.
-
D.
1850 United States census
The 1850 United States census was the seventh national population count and the first to list every household member by name, marking a major expansion in the detail of federal demographic data.
-
E.
1870 United States census
The 1870 United States census was the ninth national population count, notable as the first conducted after the Civil War and the abolition of slavery, providing key demographic data that shaped subsequent political representation and policy.
- 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: 1820 United States census Target entity description: The 1820 United States census was the fourth national population count of the U.S., documenting demographic data such as population size, age, sex, and slavery status across the states and territories at that time.
-
A.
1810 United States census
The 1810 United States census was the third national population count conducted by the U.S. federal government, used to apportion representation and gather demographic data on the young nation.
-
B.
1840 United States census
The 1840 United States census was the sixth national population count, documenting demographic data across the expanding states and territories of the U.S. prior to significant pre–Civil War growth and change.
-
C.
1800 United States census
The 1800 United States census was the second national population count conducted by the U.S. federal government, providing an early demographic snapshot of the young nation.
-
D.
1850 United States census
The 1850 United States census was the seventh national population count and the first to list every household member by name, marking a major expansion in the detail of federal demographic data.
-
E.
1870 United States census
The 1870 United States census was the ninth national population count, notable as the first conducted after the Civil War and the abolition of slavery, providing key demographic data that shaped subsequent political representation and policy.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
United States census
ⓘ
national population census ⓘ |
| archivedAs | population schedules of the 1820 census ⓘ |
| authority | United States Congress ⓘ |
| censusDate | 1820 ⓘ |
| censusNumber | 4 ⓘ |
| chronologicalPosition | fourth decennial census of the United States ⓘ |
| conductedBy |
United States federal government
ⓘ
linked to:
United States government
marshals of the United States federal judicial districts ⓘ |
| constitutionalBasis | Article I, Section 2 of the United States Constitution ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| dataCollected |
age
ⓘ
number of enslaved persons ⓘ number of foreigners not naturalized ⓘ number of free people of color ⓘ number of free white females by age category ⓘ number of free white males by age category ⓘ number of persons engaged in agriculture ⓘ number of persons engaged in commerce ⓘ number of persons engaged in manufacturing ⓘ population size ⓘ race ⓘ sex ⓘ slavery status ⓘ |
| followedBy | 1830 United States census ⓘ |
| geographicCoverage |
U.S. states in 1820
ⓘ
U.S. territories in 1820 ⓘ |
| hasPart |
state-level population schedules
ⓘ
territorial population schedules ⓘ |
| includesCategory |
enslaved persons
ⓘ
foreigners not naturalized ⓘ free people of color ⓘ free white persons ⓘ |
| language | English ⓘ |
| legalFrequency | decennial ⓘ |
| legislativeBasis | United States Constitution ⓘ |
| partOfSeries |
United States decennial census
ⓘ
linked to:
decennial United States Census
|
| precededBy | 1810 United States census ⓘ |
| purpose |
apportionment of seats in the United States House of Representatives
ⓘ
assessment of demographic characteristics of the United States population ⓘ |
| startDate | 1820-08-07 ⓘ |
| subjectOf |
historical demographic studies of slavery in the United States
ⓘ
studies of early 19th-century U.S. population distribution ⓘ |
| temporalContext |
antebellum United States
ⓘ
linked to:
Antebellum period
|
| usedFor |
genealogical research
ⓘ
historical demographic research ⓘ |
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: 1820 United States census Description of subject: The 1820 United States census was the fourth national population count of the U.S., documenting demographic data such as population size, age, sex, and slavery status across the states and territories at that time.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.