Have you ever wondered about life in Medieval Japan, Ancient Persia or the Byzantine Empire? If you have any questions about world history from prehistory to the modern world, Khan Academy has you covered. These are not overwhelming deep dives into each era but rather overviews which will help you to fill in some of the blanks in your knowledge base.
Khan Academy offers very informative and educational lessons in video and written form which are fun to work through. You can even take optional quizzes to test your knowledge retention. This is a great way to see which historical periods interest you most before you follow up with your own reading program or more in depth study.