Vinaigrette is any dressing made from oil and vinegar.
French dressing implies vinaigrette and the many variations that were
created. Britain and America made French dressing popular in the 1880’s.
Because people realized how healthy salads were, many recipes have been
created for the use of French dressing. read more of this post at,http://oilandvinegar.cruets.com/335/oil-and-vinegar-vinaigrette-2/