I’m happy I can use this after reading it yesterday:

The electrocution of Topsy the Elephant was not an anti-alternating current demonstration organized by Thomas A. Edison during the war of the currents. Edison was never at Luna Park, and the electrocution of Topsy took place ten years after the war of currents.[96] This myth may stem from the fact that the recording of the event was produced by the Edison film company.

From https://en.wikipedia.org/wiki/List_of_common_misconceptions_about_history