The British never really enjoyed Greco-Roman wrestling in comparison to its less restrictive counterpart, freestyle, and neither did the Americans, despite the efforts of William Muldoon (a successful New York barroom freestyle wrestler who served in the Franco-Prussian War and learned the style in France) to promote it in the United States after the Civil War. However, on the continent of Europe, the style was highly promoted. Almost all the continental European capital cities hosted international Greco-Roman tournaments in the 19th century, with much prize money given to the place winners. For example, the Czar of Russia paid 500 francs for wrestlers to train and compete in his tournament, with 5,000 francs awarded as a prize to the tournament winner. Greco-Roman wrestling soon became prestigious in continental Europe and was the first style registered at the modern Olympic Games, beginning in Athens in 1896 with one heavyweight bout, and grew in popularity during the 20th century. It has always been featured in the Olympic Games, except during the Paris Olympic Games in 1900 and the St. Louis Olympic Games of 1904, when freestyle first emerged as an Olympic sport.