Official language to the government in their native languages. In countries that do not formally designate an official language, a "de facto" national language usually evolves. English is the most common official language, with recognized status in 51 countries. Arabic, French, and Spanish are also widely recognized. An official language that is also an indigenous language is called "endoglossic", one that is not indigenous is "exoglossic". An instance is Nigeria which has three endoglossic official languages. By this the country aims to protect the indigenous languages although at the same time recognising the English language as its lingua franca. Around 500 BC,
Copyright law of Egypt Copyright law of Egypt Egyptian copyright law has evolved over time. The currently applicable legislation in Egypt with regard to copyright is Book Three of the "", which entered into force on 3 June 2002, the day following its publication in the "Official Gazette". The implementing decree is "" (effective by Issue No. 12, "Official Gazette", 29 March 2005). Prior to 1954, there was no legislation in Egypt protecting artistic and literary property. Despite the absence of any such legislation, indigenous and mixed courts invoked principles of natural law and justice to protect intellectual property rights. However, indigenous and mixed