After many other more or less successful attempts with relatively weak rotating and reciprocating apparatus the Prussian <answer>Moritz von Jacobi</answer> created the first real rotating electric motor in May 1834 that actually developed a remarkable mechanical output power. His motor set a world record which was improved only four years later in September 1838 by Jacobi himself. His second motor was powerful enough to drive a boat with 14 people across a wide river. It was not until 1839/40 that other developers worldwide managed to build motors of similar and later also of higher performance.
Who created the first real electric motor?
Moritz von Jacobi