{
  "@context": "https://schema.org",
  "@type": "Event",
  "name": "First Mass — Chicago, Illinois",
  "startDate": "1904",
  "description": "First Mass said in Chicago, Illinois on 1904 by Father Francis Thomay.",
  "url": "https://firstmass.net/entries/illinois-chicago-1904.html",
  "location": {
    "@type": "Place",
    "name": "Chicago, Illinois",
    "geo": {
      "@type": "GeoCoordinates",
      "latitude": 41.875562,
      "longitude": -87.624421
    }
  }
}