Though fracking is used worldwide to extract gas and oil, a fracking boom has occurred recently in the United States, partly driven by concerns over energy security and the costs associated with imported oil and other fossil fuels.
Early history. The Viennese Waltz, so called to distinguish it from the Waltz and the French Waltz, is the oldest of the current ballroom dances. It emerged in the second half of the 18th century from the German dance and the LÃ¤ndler in Austria and was both popular and subject to criticism.
Although the tango originated in urban Argentina in the late 1800s, its infectious rhythm spread rapidly throughout the world and tangos have been written by composers in several countries, including Astor Piazzolla in Argentina, Ernesto Nazareth in Brazil, William Walton in England, Igor Stravinsky in Russia, and Leroy Anderson in the United States.