The islamic holy book the qur'an has been translated into many languages but muslims believe that it can only be truly understood in

Explanation:

Arabic is the tongue used to write the qur'an is Arabic.

“the iliad” (gr: “iliás”) is an epic poem by the ancient greek poet homer, which recounts some of the significant events of the final weeks of the trojan war and the greek siege of the city of troy (which was also known as ilion, ilios or ilium in ancient times).

the communist manifesto is an 1848 political pamphlet by the german near the end of the manifesto, the authors call for a "forcible overthrow of all existing social conditions",  ..