{
    "version": 1.0,
    "title": "Ch1 The First Civilizations, Sec 1 The Early Humans pp.122-131",
    "type": "rich",
    "html": "<iframe width=\"500\" height=\"500\" style=\"border:3px solid black; margin:auto; display:block\" frameborder=\"0\" src=\"https://crosswordlabs.com/embed/ch1-the-first-civilizations-sec-1-the-early-humans\"></iframe>",
    "width": 500,
    "height": 500,
    "thumbnail_url": "https://crosswordlabs.com/image/5596722.svg",
    "thumbnail_width": 100,
    "thumbnail_height": 100
}