Property talk:P120

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minimum date (property constraint)
qualifier to define a property constraint in combination with P142

Data type	Point in time
Domain	Gratisdata property with datatype 'time' (Q520)
Usage notes	Use this qualifier to define a property constraint in combination with P142.
See also	minimum value (P87)
Lists	Items with novalue claims Items with unknown value claims <usage history (total)> <usage history (main statement)> Future dates Dates in Gregorian calendar before 1582 Dates before year 1 (Help:Dates#Years BC) <date on January 1> (Help:Dates#January 1 as date)
Proposal discussion	Originally created without a formal discussion

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Scope is as qualifier (Q792): the property must be used by specified way only List of this constraint violations: Database reports/Constraint violations/P120#scope, hourly updated report, SPARQL

Type “Gratisdata property with datatype 'time' (Q520)”: element must contain property “instance of (P3)” with classes “Gratisdata property with datatype 'time' (Q520)” or their subclasses (defined using NLA Trove ID (P279)). Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P120#type, SPARQL

Allowed entity types are Wikibase property datatype (Q784): the property may only be used on a certain entity type Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P120#allowed entity types

Item “property constraint (P142): range constraint (Q2149)”: Items with this property should also have “property constraint (P142): range constraint (Q2149)”. Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P120#Item, SPARQL