Johann Strauss was an Austrian composer born on March 25, 1825, in Vienna. He is best known for his waltzes, polkas, and operettas, which became popular in the 19th century. His most famous work, the "Blue Danube" waltz, remains a classic and is often associated with Viennese culture. Strauss earned the nickname "The Waltz King" due to his significant contributions to the genre. He composed over 500 works during his lifetime, influencing the development of light classical music. He passed away on June 3, 1899, but his music continues to be celebrated worldwide.