In show they created Mecha before a Plane. Even though they have created plane but still use airship. They have tanks 50 years before any cars. They created a complex drill machine before other thing.
In show they created Mecha before a Plane. Even though they have created plane but still use airship. They have tanks 50 years before any cars. They created a complex drill machine before other thing.
Big note on that last point: the Fire Nation knew that air combat was a possibility because, up until 100 years prior to the events of ATLA, the Air Nomads existed and were able to fly. We didn’t have that.