Drupal is a very popular content management system (CMS) or rather as they like to call it a content management framework (CMF). Drupal runs a very large number of websites around the world from high traffic websites to personal ones. This popularity of Drupal means that it should support as many languages and characters as possible to truly serve it's user base. Mysql among others is a popular database which powers Drupal's backend.
Zircon - This is a contributing Drupal Theme Design by WeebPal.