英语翻译So why does most of the world travel on the right side t

英语翻译
So why does most of the world travel on the right side today?Theories differ,but there's no doubt Napoleon was a major influence.The French have used the right since at least the late 18th century (there's evidence of a Parisian "keep-right" law dating to 1794).Some say that before the French Revolution,aristocrats drove their carriages on the left,forcing the peasantry to the right.Amid the upheaval,fearful aristocrats sought to blend in with the proletariat by traveling on the right as well.Regardless of the origin,Napoleon brought right-hand traffic to the nations he conquered,including Russia,Switzerland and Germany.Hitler,in turn,ordered right-hand traffic in Czechoslovakia and Austria in the 1930s.Nations that escaped right-handed conquest,like Great Britain,preserved their left-handed tradition.
The U.S.has not always been a nation of right-hand drivers; earlier in its history,carriage and horse traffic traveled on the left,as it did in England.But by the late 1700s,the theory goes,teamsters driving large wagons pulled by several pairs of horses began prompting a shift to the right.A driver would sit on the rear left horse in order to wield his whip with his right hand; to see opposite traffic clearly,the teamsters traveled on the right.
One of the final moves to firmly standardize traffic directions in the U.S.occurred in the 20th century,when Henry Ford decided to mass-produce his cars with controls on the left (one reason,stated in a 1908 catalog:the convenience for passengers exiting directly onto the curb,"especially ...if there is a lady to be considered").Once these norms were set,many countries eventually adjusted to conform to the right-hand standard,including Canada in the 1920s,Sweden in 1967 and Burma in 1970.The U.K.and former colonies such as Australia and India are among the Western world's few remaining holdouts.Several Asian nations,including Japan,use the left as well — a possible legacy of samurai warriors who wore their swords on their left and didn't want to bump anyone — though many places use both right-hand-drive and left-hand-drive cars.

这么长还没分,有点说不过去吧,要尊重知识啊