title: What does "KHTML, like Gecko" mean in a user-agent string?
body: <p>I understand that <a href="https://en.wikipedia.org/wiki/KHTML" rel="noreferrer">KHTML</a> is the <a href="https://en.wikipedia.org/wiki/Web_browser_engine" rel="noreferrer">HTML Layout Engine</a> used, but what significance does the "<em>like Gecko</em>" part have? Why is it there?</p>
  
  <p>Is there a historical reason similar to the "<em>Mozilla</em>" part of the <a href="https://en.wikipedia.org/wiki/User_agent_string" rel="noreferrer">User Agent String</a>?</p>