The tale of Avatar Roku and Fire Lord Sozin is revealed to Aang and Zuko by different sources. Both learn about themselves and are shown the origins of the war.
📺 watched Avatar: The Last Airbender 3x06 The Avatar and the Fire Lord https://trakt.tv/shows/avatar-the-last-airbender/seasons/3/episodes/6 🧭 https://www.frederickcalica.com/?p=3342989