title: Minimum and maximum date
body: <p>I was wondering which is the minimum and the maximum date allowed for a Javascript <code>Date</code> object. I found that the minimum date is something like 200000 B.C., but I couldn't get any reference about it.</p>
  
  <p>Does anyone know the answer? I just hope that it doesn't depend on the browser.</p>
  
  <p>An answer in "epoch time" (= milliseconds from 1970-01-01 00:00:00 UTC+00) would be the best.</p>