There's a whole extra level to the first showdown between Qui-Gon and Darth Maul ...

Darth Maul may have been cut in half during The Phantom Menace, but he's found a way to come back multiple times.

The absence of the word “Sith” from the original trilogy is surprising in retrospect. It was a piece of early conceptual lore left in the dust while the focus remained squarely on the heroes’ journey.