April 20 – Electrification of the South Side Elevated Railway in Chicago is completed ending all steam locomotive operations on the route. Multiple-unit (M.U.) train control is also introduced by railroad engineer Frank J. Sprague.
White, John H. Jr. (1968). A history of the American locomotive; its development: 1830–1880. New York, NY: Dover Publications. ISBN0-486-23818-0.
^"(untitled)". Edinburgh Evening News. 1 April 1898.
^Thomas, John (1984). A Regional History of the Railways of Great Britain. Vol. 6, Scotland, the Lowlands and the Borders. revised by J.S. Paterson (revised ed.). Newton Abbot: David and Charles. ISBN0-946537-12-7.