The Need For Speed: A Brief (and Fascinating) History of Speed Limits
"You’re driving along the road and see the white sign stating that the speed limit is 50 miles per hour. Do you notice it? Do you heed it? Most people drive by without the slightest thought of speed limits, why we have them, and why they’re so important. However, speed limits have a long and interesting history worldwide, specifically where the United States is concerned."