Final answer:
The work of Transtromer has been translated into more than 20 languages including Arabic during the time of the Abbasid Caliphate.
Step-by-step explanation:
The work of Transtromer has been translated into more than 20 languages. One source mentions that in 1937, the work was produced in more than 20 languages of the Soviet republics. Additionally, this answer mentions translations into Arabic during the time of the Abbasid Caliphate in Baghdad, where Syrian Christians who spoke both Greek and Arabic often carried out the translations.