Tesla is famous in the US for inventing polyphase AC and induction motors, but this is really one of these stories were a bunch of people invented the same thing very closely to each other due to a precipitating reaching of understanding.
Note that Tesla's designs were IIRC two-phase which is largely inferior to three-phase. The push for three-phase and associated designs and inventions (three phase transformers on a single core etc.) came from outside the US.
Note that Tesla's designs were IIRC two-phase which is largely inferior to three-phase. The push for three-phase and associated designs and inventions (three phase transformers on a single core etc.) came from outside the US.