Template:Birth based on age at death

<templatedata> { "params": { "1": { "label": "Age at death", "type": "number", "required": true }, "2": { "label": "Year", "description": "The year the age was stated", "type": "number", "required": true }, "3": { "label": "Month", "description": "The month the age was stated", "example": "8, 08, Aug, August", "type": "string", "required": true }, "4": { "label": "Day", "description": "The day the age was stated", "type": "number", "required": true }, "slash": { "label": "Use slash?", "description": "Uses a slash (/) to separate between the two possible years instead of \"or\"", "type": "boolean", "suggested": true } }, "description": "This template calculates a person's approximate birth year based on their age at death.", "paramOrder": [ "1", "2", "3", "4", "slash" ], "format": "inline" } </templatedata>