Which earlier animated series is The Legend of Korra a sequel to?

The Legend of Korra is a sequel to Avatar: The Last Airbender. Both animated series were created by Michael Dante DiMartino and Bryan Konietzko and share the same fictional world, bending system, and Avatar mythology.

The story takes place about 70 years after the events of the earlier series. Aang, the young Avatar who saved the world from the Fire Nation, has died, and Korra is his successor and reincarnation. The new series follows Korra as she navigates a rapidly modernizing world shaped by the peace established at the end of Aang’s era.

Several characters and institutions connect the shows, including Katara, Toph’s legacy, the White Lotus, and Aang’s children. The sequel also changes the atmosphere: instead of focusing mainly on a wartime journey across a preindustrial world, it explores cities, technology, political unrest, spirituality, and the consequences of the previous Avatar’s decisions.