{"type":"rich","version":"1.0","title":"Imperialism Vocabulary","description":"Define key vocabulary terms related to imperialism: colony, protectorate, sphere of influence, annexation, assimilation, exploitation, nationalism, self-determination, and sovereignty.","author_name":"Padlet Arcade","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1780948641574&hashid=Qwr67Ob7j2","html":"<iframe src=\"https://arcade.padlet.com/embed/Qwr67Ob7j2\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","width":720,"height":480,"provider_name":"Padlet Arcade","provider_url":"https://arcade.padlet.com"}