title: Why do my files have a last modified timestamp of January 1, 1980?
body: <p>I'm working in Python with a number of libraries at play.</p>
  
  <p>I have a group of files on a Linux server that have the last modified timestamp of midnight on January 1, 1980 (unix timestamp 315532800.0).  The last changed timestamp however is recent.  What could have caused this?  </p>
  
  <p>In particular, Jan 1 1980 is a suspiciously round number, but not one of the usual suspicious round numbers.</p>