{
  "meta": {
    "subject": "Roblox group 4921585",
    "retrieved": "2026-09-09T08:33:16.498Z",
    "licence": "Measured by roregister.com from public Roblox APIs. Free to reuse with attribution to roregister.com. Not affiliated with Roblox Corporation.",
    "notes": {
      "member_history": "insert-on-change; a point exists only where the value differed from the prior reading.",
      "detection_dates": "ownership/name changes are dated when this register observed them, not when they happened."
    }
  },
  "group": {
    "id": 4921585,
    "name": "Feuerwehr Berlin",
    "created": "2019-05-14T20:06:35.413Z",
    "owner_user_id": 406817101,
    "member_count": 31158,
    "has_verified_badge": false,
    "is_locked": false,
    "status": "live",
    "first_measured": "2026-08-10T11:47:13.284Z",
    "last_measured": "2026-09-09T08:10:52.651Z"
  },
  "member_history": [
    {
      "measured_at": "2026-08-10T11:47:13.284Z",
      "member_count": 31174
    },
    {
      "measured_at": "2026-08-10T13:15:08.509Z",
      "member_count": 31174
    },
    {
      "measured_at": "2026-08-11T08:47:18.329Z",
      "member_count": 31173
    },
    {
      "measured_at": "2026-08-12T15:47:48.625Z",
      "member_count": 31174
    },
    {
      "measured_at": "2026-08-15T13:02:40.763Z",
      "member_count": 31173
    },
    {
      "measured_at": "2026-08-16T14:50:56.470Z",
      "member_count": 31172
    },
    {
      "measured_at": "2026-08-19T09:01:14.764Z",
      "member_count": 31171
    },
    {
      "measured_at": "2026-08-19T20:30:25.015Z",
      "member_count": 31170
    },
    {
      "measured_at": "2026-08-23T15:20:52.754Z",
      "member_count": 31169
    },
    {
      "measured_at": "2026-08-24T03:10:41.481Z",
      "member_count": 31168
    },
    {
      "measured_at": "2026-08-25T20:31:52.917Z",
      "member_count": 31167
    },
    {
      "measured_at": "2026-08-27T15:10:26.421Z",
      "member_count": 31166
    },
    {
      "measured_at": "2026-08-27T20:41:40.891Z",
      "member_count": 31165
    },
    {
      "measured_at": "2026-08-30T13:09:13.529Z",
      "member_count": 31164
    },
    {
      "measured_at": "2026-08-30T23:20:12.629Z",
      "member_count": 31163
    },
    {
      "measured_at": "2026-09-01T19:10:43.543Z",
      "member_count": 31162
    },
    {
      "measured_at": "2026-09-03T18:55:45.212Z",
      "member_count": 31161
    },
    {
      "measured_at": "2026-09-05T08:20:54.113Z",
      "member_count": 31160
    },
    {
      "measured_at": "2026-09-06T17:00:35.399Z",
      "member_count": 31159
    },
    {
      "measured_at": "2026-09-06T20:50:26.462Z",
      "member_count": 31158
    }
  ],
  "name_history": [
    {
      "name": "Feuerwehr Berlin",
      "first_seen": "2026-08-10T11:47:13.284Z",
      "last_seen": "2026-09-09T08:10:52.651Z",
      "current": true
    }
  ],
  "ownership_events": [
    {
      "observed_at": "2026-08-10T13:15:08.509Z",
      "previous_owner": null,
      "new_owner": 406817101
    }
  ]
}