Status: datum för grundande eller skapande (P571) is used ==> no change

Today we use P571 "date or point in time when the organization/subject was founded/created"

maybe we should change to Property:P580 "indicates the time a statement starts being valid"

see

• T200500: Church parish "församling" is changing name
• T141859: [Task] Contemporary constraint check
• see also constraints on P778 identifier for a parish of the Church of Sweden

Today Q10602596

"P571": [
    {
        "mainsnak": {
            "snaktype": "somevalue",
            "property": "P571",
            "hash": "6738a7099bb4f22cc0577088a076bf2faa9b02b6",
            "datatype": "time"
        },
        "type": "statement",
        "id": "Q10602596$44c50f4f-4738-c288-6c6b-8141cefe5575",
        "rank": "normal"
    }
],

Advice

Using somedate is not a good advice we need to specify what "medivial time is" see Wikidata:Project_chat#Add_a_date_before_year_1600_?