The Kings and Generals YouTube channel creates high quality educational videos that focus on epic historical battles and other events. Their channel is an amazing resource for historical writing, world building and/or learning about history.
I personally watch the channel to get a better understanding of how ancient battles were fought and how ancient people lived. This knowledge is helping me to up my world building ability for my book series. The Kings and Generals channel is packed full of great information for writers and other people simply interested in history and warfare. Head over to their channel, check it out and if you like there videos subscribe.