Fußball-Club Gelsenkirchen-Schalke 04, commonly known as simply FC Schalke 04 or Schalke, is a German association-football club originally from the Schalke district of Gelsenkirchen, North Rhine-Westphalia. Schalke has long been one of the most popular football teams in Germany, even though major successes have been rare since the club’s heyday in the 1930s and early 1940s. The football team is the biggest part of a large sports club with more than 100,000 members (August 2011) making it the second largest sports club in Germany. Other activities offered by the club include basketball, handball, and track and field.

Schalke won its first major European trophy in 1997 by defeating in the final Internazionale on penalty kicks for the UEFA Cup. Schalke holds a long-standing rivalry with Borussia Dortmund, and matches between the two teams are referred to as the Revierderby. The mascot of the club is called Erwin (also Ährwin.)

source: Wiki