"A history lesson for people who think that history doesn't matter:
What's the big deal about railroad tracks?
The US standard railroad gauge (distance between the rails) is 4 feet, 8.5 inches. That's an exceedingly odd number.
Why was that gauge used?"
"The Web's Uniform Interface is based on a large and growing set of specifications. These specifications establish the shared concepts that providers and consumers of Web services can rely on. Web Concepts is providing an overview of these concepts and of the specifications defining them."