section_path: Demographics/Languages
section_name: Languages
paragraph_text: Languages
  
  Approximately 70 languages are native to Sudan. Sudan has multiple regional sign languages, which are not mutually intelligible. A 2009 proposal for a unified Sudanese Sign Language had been worked out. Prior to 2005, Arabic was the nation's sole official language. In the 2005 constitution, Sudan's official languages became Arabic and English.
  
  The literacy rate is 70.2% of the total population (male: 79.6%, female: 60.8%).