https://www.khanacademy.org/humanities/world-history/x66f79d8a:regional-webs/x66f79d8a:collapse-and-restructuring-5-1/a/activity-opener-vocabulary-match-up 2026-06-30T12:40:47.173333589Z Activity: Vocabulary Match-Up Use your prior knowledge and experiences to connect with the new vocabulary you'll encounter in this lesson. article https://www.khanacademy.org/humanities/world-history/x66f79d8a:regional-webs/x66f79d8a:collapse-and-restructuring-5-1/a/activity-unit-5-notebook-part-1 2026-06-30T12:40:47.173333589Z Activity: Unit 5 Notebook—Part 1 It's time to explore some of the big ideas of Unit 5. Remember, you'll have a chance to revisit these ideas at the end of the unit when you have more evidence. article https://www.khanacademy.org/humanities/world-history/x66f79d8a:regional-webs/x66f79d8a:collapse-and-restructuring-5-1/v/watch-regional-webs-200-to-1500-ce-unit-5-overview 2025-08-12T03:52:41.296842565Z Regional Webs (200 to 1500 CE): Unit 5 Overview When the Roman Empire and Han Dynasty collapsed, much of the world was cast into a period of chaos and disarray. But often, periods of collapse look more like restructuring as people sought new sources of authority. Website: https://www.oerproject.com Facebook: https://www.facebook.com/OERProject/ Twitter: https://twitter.com/OERProject World History Project video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Regional Webs (200 to 1500 CE): Unit 5 Overview When the Roman Empire and Han Dynasty collapsed, much of the world was cast into a period of chaos and disarray. But often, periods of collapse look more like restructuring as people sought new sources of authority. Website: https://www.oerproject.com Facebook: https://www.facebook.com/OERProject/ Twitter: https://twitter.com/OERProject https://cdn.kastatic.org/ka-youtube-converted/cNoUIINLJdE.mp4/cNoUIINLJdE.mp4 406 Collapse and Restructuring | 5.1 https://www.khanacademy.org/humanities/world-history/x66f79d8a:regional-webs/x66f79d8a:collapse-and-restructuring-5-1/a/article-unit-5-introduction-collapse-and-restructuring 2025-08-12T03:52:41.296842565Z Unit 5 Introduction: Collapse and Restructuring Empires collapse—but humanity rebuilds. After each fall, new structures rise and reshape the world. article https://www.khanacademy.org/humanities/world-history/x66f79d8a:regional-webs/x66f79d8a:collapse-and-restructuring-5-1/v/watch-frames-in-unit-5 2025-08-12T03:52:41.296842565Z Frames in Unit 5 When viewed through each of the three frames, the collapse of societies and communities can lead to dramatic changes, but not always in predictable ways. Website: https://www.oerproject.com Facebook: https://www.facebook.com/OERProject/ Twitter: https://twitter.com/OERProject World History Project video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Frames in Unit 5 When viewed through each of the three frames, the collapse of societies and communities can lead to dramatic changes, but not always in predictable ways. Website: https://www.oerproject.com Facebook: https://www.facebook.com/OERProject/ Twitter: https://twitter.com/OERProject https://cdn.kastatic.org/ka-youtube-converted/jteV1XPfYcc.mp4/jteV1XPfYcc.mp4 197 Collapse and Restructuring | 5.1 https://www.khanacademy.org/humanities/world-history/x66f79d8a:regional-webs/x66f79d8a:collapse-and-restructuring-5-1/a/activity-frames-timeline-collapse-and-restructuring 2026-06-30T12:40:47.173333589Z Activity: Frames Timeline—Collapse and Restructuring This timeline activity will help you organize major events leading up to and after societal collapse by evaluating changes in the three frames. article https://www.khanacademy.org/humanities/world-history/x66f79d8a:regional-webs/x66f79d8a:collapse-and-restructuring-5-1/a/activity-closer-letters-from-the-edge-of-collapse 2026-06-30T12:40:47.173333589Z Activity: Letters from the Edge of Collapse Imagine you're living through a period of societal collapse. What advice would you write to someone younger than you to help them survive and thrive? article