A. Poison ivy, poison oak, and poison sumac are plants that contain an irritating, oily sap called urushiol. Urushiol triggers an allergic reaction when it comes into contact with skin, resulting in an itchy rash, which can appear within hours of exposure or up to several days later.
Vienna  is a song from Billy Joel 's 1977 album The Stranger, released as the B-side to his  She's Always a Woman  single. In a July 2008 New York Times article, Joel cited this as one of his two favorite songs, along with Summer, Highland Falls.
He composed over 500 waltzes , polkas , quadrilles , and other types of dance music, as well as several operettas and a ballet. In his lifetime, he was known as The Waltz King, and was largely then responsible for the popularity of the waltz in Vienna during the 19th century.