When was the first ever Pen created and who created it. Also what is inside a pen ?!

Question: When was the first ever Pen created and who created it. Also what is inside a pen ?!
- Keywords:
  invention,
  pen
Asked by twardy99 to Ben, Jony, Katharine, Mark, Peter on 22 Nov 2011.
- Mark Basham answered on 22 Nov 2011:
  
  Well pens have been around for ages, It depends on what you consider to be a pen. Early pens were anything which puts Ink onto paper, so feathers, or bits of bamboo count. Later pens have the ink included inside them in a little pack, and then let it flow out through the tip of the pen. I’d recommend taking a look at the wikipedia page on it, as there’s lots of info, and hopefully the information you would like to know.
  
  http://en.wikipedia.org/wiki/Pen

Question: When was the first ever Pen created and who created it. Also what is inside a pen ?!