{"type":"rich","version":"1.0","title":"[John Green] The Agricultural Revolution: Crash Course World History #1","width":800,"html":"<iframe src=\"https://app.castmagic.io/share/MN75vb43pm69cWni\" width=\"100%\" height=\"700\" style=\"border:0\" title=\"[John Green] The Agricultural Revolution: Crash Course World History #1\" loading=\"lazy\"></iframe>","height":700,"provider_name":"Castmagic","provider_url":"https://app.castmagic.io/"}