Dodecanese relative quiet and prosperity. In 408 BC, the three cities of Rhodes had united to form one state, which built a new capital on the northern end of the island, also named "Rhodes"; this united Rhodes was to dominate the region for the coming millennia. Other islands in the Dodecanese also developed into significant economic and cultural centers; most notably, Kos served as the site of the school of medicine founded by Hippocrates. However, the Peloponnesian War had so weakened the entire Greek civilization's military strength that it lay open to invasion. In 357 BC, the islands were conquered by
Transmission of the Greek Classics century, however, there was little work in translation. Most knowledge of Greek during Umayyad rule was gained from those scholars of Greek who remained from the Byzantine period, rather than through widespread translation and dissemination of texts. A few scholars argue that translation was more widespread than is thought during this period, but theirs remains the minority view. The main period of translation was during Abbasid rule. The 2nd Abbasid Caliph al-Mansur moved the capital from Damascus to Baghdad. Here he founded the great library with texts containing Greek Classical texts. Al-Mansur ordered this rich fund of world literature translated