International Exposition of Electricity, Marianne bronze medal by Chaplain; 69 mm, 147g. The first International Exposition of Electricity in Paris ran from August 15 to November 15, 1881 at the Palais de l'Industrie on the Champs-Elysees. It served to display the advances in electrical technology since the small electrical display at the 1878 Universal Exposition. Exhibitors came from the UK, USA, Germany, Italy and the Netherlands, as well as from France. As part of the exhibition, the first International Congress of Electricians presented numerous scientific and technical papers, including definitions of the standard practical units volt, ohm and ampere.