Asia Minor, during this period, contained many Hellenistic cities. One of the most important was Pergamum, the capital of a small but independent kingdom of the same name. Its rulers earned the gratitude of all the Greeks by their resistance to the terrible Gauls. About fifty years after Alexander's death this barbarous people, pouring down from central Europe, had ravaged Greece and invaded Asia Minor. The kings of Pergamum celebrated their victories over the Gauls with so many works of architecture and sculpture that their city became the artistic rival of Athens. RHODES One other great Hellenistic center existed in the island city of Rhodes. Founded during the closing years of the Peloponnesian War, Rhodes soon distanced Athens in the race for commercial supremacy. The merchants of Rhodes framed admirable laws, especially for business affairs, and many of these were incorporated in the Roman code. Rhodes was celebrated for art. No less than three thousand statues adorned the streets and public buildings. It was also a favorite place of education for promising orators and writers. During Roman days many eminent men, Cicero and Julius Caesar among them, studied oratory at Rhodes. 45. THE HELLENISTIC AGE HELLENISTIC LITERATURE These splendid cities in the Orient were the centers of much literary activity. Their inhabitants, whether Hellenic or "barbarian," used Greek as a common language. During this period Greek literature took on a cosmopolitan character. It no longer centered in Athens. Writers found their audiences in all lands where Greeks had settled. At the same time literature became more and more an affair of the study. The authors were usually professional bookmen writing for a bookish public. They produced many works of literary criticism, prepared excellent grammars and dictionaries, but wrote very little poetry or prose of enduring value. THE MUSEUM AT ALEXANDRIA The Hellenistic Age was distinguished as an age of learning. Particularly was this true at Alexandria, where the Museum, founded by the first Macedonian king of Egypt, became a real university. It contained galleries of art, an astronomical observatory, and even zoological and botanical gardens. The Museum formed a resort for men of learning, who had the leisure necessary for scholarly research. The beautiful gardens, with their shady walks, statues, and fountains, were the haunt of thousands of students whom the fame of Alexandria attracted from all parts of the civilized world. THE ALEXANDRIAN LIBRARY