https://www.khanacademy.org/humanities/world-history/x66f79d8a:empires-and-belief-systems/x66f79d8a:comparing-ancient-empires-4-4/a/activity-empire-building 2026-06-30T12:40:47.173333589Z Activity: Empire Building Why did some empires last centuries and others crumble quickly? In this activity, you'll create a Frankenstein-style empire to test the strengths and weaknesses of empires. article https://www.khanacademy.org/humanities/world-history/x66f79d8a:empires-and-belief-systems/x66f79d8a:comparing-ancient-empires-4-4/a/activity-closer-imperial-wisdom 2026-06-30T12:40:47.173333589Z Activity: Imperial Wisdom Consider the lasting legacies of ancient empires and identify what you think is the most important historical contribution among ancient empires. article https://www.khanacademy.org/humanities/world-history/x66f79d8a:empires-and-belief-systems/x66f79d8a:comparing-ancient-empires-4-4/e/4-3-and-4-4-practice 2026-06-30T12:40:47.173333589Z Comparing Ancient Empires Practice what you learned in lesson 4.3 and 4.4! Jessica Shattuck exercise