25 years of Railroad Revolution. In addition to the Transrapid magnetic suspension train, another sensation was also introduced at the 1979 Transportation Exhibition in Munich: The first electronically controlled three-phase current locomotive for general use. The designation was not taken quite as exactly by the builders, Krauss-Maffei, Henschel, Krupp, and BBC as it was by the official DB: At the presentation the E120 bore the Epoch III code letters for electric locomotives in addition to the regular class designation. Breakthrough technology was already in evidence in the first 5 prototypes. This technology has been used and further developed in the 120.1 regular production locomotive, in the ICE project, and in today"s Europa locomotives.