 The number is generally even if the highway runs east–west, and generally odd if it runs north–south, though there are many substantial deviations from this plan.Rescue opera

Rescue opera was a genre of opera in the late 18th and early 19th centuries in France and Germany.Generally, rescue operas deal with the rescue of a main character from danger and end with a happy dramatic resolution in which lofty humanistic ideals triumph over base motives.