text: What evidence to you have to support the name change?  How about we use science shall we?  
  
  The name was changed as science and technology evolved over the years and recognized that this tar-like substance doesn't actually contain any tar in the bitumen.  Bitumen contains oil.  Oil is made into tar through a specific process.
  
  Please refer to the Schlumberger oilfield glossary and stop denying the science.