title: What are the origins of standard port numbers?
body: <p>Wikipedia has a <a href="http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers" rel="nofollow noreferrer">long list</a> of standard port numbers for various protocols.</p>
  
  <p>Does anyone know how some of these numbers were chosen?</p>
  
  <p><strong>EDIT</strong>: I'm asking how/why the original developers chose the numbers, not where the list comes from. </p>