Property talk:P3415

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start period
initial period in which the statement is valid (including the period-value)

Description	initial period in which the statement is valid (including the period-value)
Data type	Item
Example	According to this template: Clefairy (Q1307681): instance of (P31) → fairy-type Pokémon (Q25930814) start period sixth generation of Pokémon (Q27065429) According to statements in the property: Clefairy (Q1307681) → sixth generation of Pokémon (Q27065429) When possible, data should only be stored as statements
Robot and gadget jobs	DeltaBot does the following jobs: Move source to qualifier
<complementary property>	end period (P3416)
See also	start time (P580), valid in period (P1264), time period (P2348), start of covered period (P7103)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P3415 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 631 Main statement 48 7.6% of uses Qualifier 580 91.9% of uses Reference 3 0.5% of uses
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Scope is as qualifier (Q54828449): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: gestational age (Q2253111), embryonic age (Q30014607)
List of violations of this constraint: Database reports/Constraint violations/P3415#Scope, SPARQL