Modern style is an artistic direction in architecture, decorative applied and fine arts, most widespread in the last decade of the 19th - early 20th centuries (before the start of the First World War).
Distinctive features of Art Nouveau are the rejection of straight lines and angles in favor of more natural, "natural" lines, interest in new technologies (for example, in architecture), the flourishing of applied art.
In different countries, the style had different names: in France - "Art Nouveau" (French art nouveau, literally "new art") or "fin de siècle" (French "end of the century"); in England - "modern style"; in Germany - “Jugendstil” (German Jugendstil - “young style” - after the name of the illustrated magazine Jugend founded in 1896); in Austria, Czechoslovakia and Poland - "secession" (German. Secession - "secession, isolation"); in Scotland - "Glasgow style"; in Belgium - the "style of twenty" (from the name of the "Society of Twenty", created in 1884); in Italy - "liberty" ("Liberty style"); in Spain - "modernism" (Spanish modernismo); in the Netherlands - "Nieuwe Kunst"; in Switzerland - “spruce style” (style sapin); in the USA - "tiffany" (named after L. K. Tiffany); in Russia - "modern".