title: MySQL collation to store multilingual data of unknown language
body: <p>I am new to multilingual data and my confession is that I never did tried it before.
  Currently I am working on a multilingual site, but I do not know which language will be used.</p>
  
  <p>Which collation/character set of MySQL should I use to achieve this?</p>
  
  <p>Should I use some Unicode type of character set?</p>
  
  <p>And of course these languages are not out of this universe, these must be in the set which we mostly use.</p>