Template:Family/Set Years

Generate a description years associated with a family. Sets the properties Property:Year, The year (a date) in which the first birth of a parent in a Family occurred. Estimated if an exact year is not known (conventionally, in the absence of further information, this is 25 years before the Marriage Year or 100 years before the Parent Death Year). Useful for sorting and grouping families chronologically., and The year (a date) in which the last death of a parent in a Family occurred. Estimated if an exact year is not known, or if a parent is still living (conventionally, in the absence of further information, this is 100 years after the Parent Birth Year or 75 years after the Marriage Year). Useful for sorting and grouping families chronologically..

• year: Year of marriage or similar event; default is parent birth year+25 or parent death year-75
• parent birth year: Earliest year of a parent's birth; default is parent death year-100 or year-25
• parent death year: Latest year of a parent's death; default is parent birth year+100 or year+75