This may amuse you. It's from a Wikipedia article on March tempos<http://en.wikipedia.org/wiki/March_%28music%29>. This is from the second paragraph under "History".
The march tempo of 120 beats or steps per minute was adapted by Napoleon Bonaparte so that his army could move faster. Since he planned to occupy the territory he conquered, instead of his soldiers carrying all of their provisions with them, they would live off the land and march faster. The French march tempo is faster than the traditional tempo of British marches; the British call marches in the French tempo *quick marches*. Traditional American marches use the French or quick march tempo. There are two reason for this: First, U.S. military bands adopted the march tempos of France and other continental European nations that aided the U.S. during its early wars with Great Britain. Second, the composer of the greatest American marches, John Philip Sousa, was of Portuguese and German descent. Portugal used the French tempo exclusively—the standard Sousa learned during his musical education. A military band playing or marching at the traditional British march tempo (a more stately 88-112 beats per minute) would seem unusually slow in the United States. Tempos for the marches of other countries are listed in the article. M E
