Prix du Jockey Club initially 2,500 metres, and this was cut to 2,400 metres in 1843. It was switched to Versailles during the Revolution of 1848, and it was cancelled due to the Franco-Prussian War in 1871. The race was abandoned in 1915, and for three years thereafter it was replaced by the Prix des Trois Ans. This took place at Moulins in 1916, Chantilly in 1917 and Maisons-Laffitte in 1918. The first two runnings after World War I were held at Longchamp. A substitute race called the Prix de Chantilly was run at Auteuil over 2,600 metres in 1940. The Prix du Jockey
Maryland Jockey Club growth of Baltimore as an economic center, the Maryland Jockey Club shifted its operations to "Central Course, Baltimore," about five miles southwest of the city on the Frederick Pike. In 1831, President Andrew Jackson became a member of the Maryland Jockey Club and races his very own White House Stable in meets under the name of his secretary, A. J. Donelson. In 1867 the site of present day Pimlico Race Course was incorporated for a track by the state by way of the Maryland General Assembly. In 1868 Saratoga Race Course in New York revived its racing program after its