v t e Documentation science

Has list	Persons (person) Places (human settlement) Artworks (work)

Classification scheme	list of Wikidata properties (related category) list of Wikidata identifiers (related category) ...

start time (P580): time an entity begins to exist or a statement starts being valid
end time (P582): moment when an entity ceases to exist or a statement stops being valid
point in time (P585): date something took place, existed or a statement was true; for providing time use the "refine date" property (P4241)
country (P17): sovereign state that this item is in (not to be used for human beings)
coordinate location (P625): geocoordinates of the subject. For Earth, please note that only WGS84 coordinating system is supported at the moment
end cause (P1534): qualifier to use together with the end date qualifier (P582) to specify the cause
criterion used (P1013): property by which a distinction or classification is made
floor number (P5423): floor number in a street address. To be used as a qualifier of Property:P6375 "located on street" or as a property of a place
...

value-type constraint (Q21510865): type of constraint for Wikidata properties: used to specify that the value item should be a subclass or instance of a given type
→ class → physical location • geographical feature • geographic region • extremity • space • organ • tissue • ...
conflicts-with constraint (Q21502838): type of constraint for Wikidata properties: used to specify that an item must not have a given statement → item of property constraint → Wikimedia disambiguation page
contemporary constraint (Q25796498): type of constraint for Wikidata properties: used to specify that the subject and the object have to coincide or coexist at some point of history