Category:Year of death unknown

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This category (and, within its own specific purpose, the analogous Category:Year of birth unknown) is intended for placement in biographical entries about deceased individuals, primarily from antiquity (although, in some cases, reaching into the 19th century) whose year of death is lost to history and likely to never be known. "Year of death unknown" will also be applicable to some individuals from the less-remote past whose varying degrees of notability were sufficient to justify a biographical entry, but whose deaths occurred in times and under circumstances which precluded the recording and/or preservation of historical records. A controversial exception may be argued in cases of long-missing individuals such as Joseph Force Crater, Amelia Earhart, Helen Brach or Jimmy Hoffa, although the year of their disappearance is generally accepted as the year of death.

In the case of contemporary or recent figures whose year of death is presumed to have been recorded and could be researched, please use Category:Year of death missing.

This category and categories Date of death unknown and Date of death missing (each of the "Date" categories indicates the presence of the year of death, but the absence of the month and day) are intended to be mutually exclusive.

NOTE: Article-page categories which delineate the specific decade or century of the pertinent individual's death, such as Category:1070s deaths or Category:11th-century deaths, specify additional data and are not intended as substitutes for "Year of death unknown", which is an all-encompassing category.

• Category:Year of birth missing
• Category:Year of birth missing (living people)
• Category:Year of birth unknown
• Category:Year of birth uncertain
• Category:Date of birth missing
• Category:Date of birth missing (living people)
• Category:Date of birth unknown
• Category:Place of birth missing
• Category:Place of birth missing (living people)
• Category:Place of birth unknown
• Category:Year of death missing
• Category:Date of death missing
• Category:Date of death unknown
• Category:Place of death missing
• Category:Place of death unknown

• Category:Living people
• Category:Possibly living people
• Category:Missing people
• Category:Dead people
• Category:Missing middle or first names