title: Which packages for many unicode-characters?
body: <p>I'm trying to create a LaTeX document with as many as Unicode characters as possible. My header is as follows:</p>
  
  <pre><code>\documentclass[12pt,a4paper]{article}
  \usepackage[utf8x]{inputenc}
  \usepackage{ucs}
  \pagestyle{empty}
  \usepackage{textcomp} 
  \usepackage[T1]{fontenc}
  \begin{document}
  </code></pre>
  
  <p>The Unicode characters which follow in the document-body are in the form of </p>
  
  <pre><code>\unichar{xyz}
  </code></pre>
  
  <p>where xyz stands for an integer, e.g. 97 (for "a"). </p>
  
  <p>The problem is: for many integers the script's not compiling with an error message as:</p>
  
  <pre>
  ! Package ucs Error: Unknown Unicode character 79297 = U+135C1,
  (ucs)                possibly declared in uni-309.def.
  (ucs)                Type H to see if it is available with options.
  </pre>
  
  <p>Which packages should I add to the header to make the file compile with as many characters as possible?</p>