It is held by Windisch that the New Attic Comedy, which flourished from 340–260 B.C., must be deemed the source of influence on Indian drama; the fact that no mention of this comedy is specifically made in the few notices we have of drama in the east is doubtless not of importance. On the other hand, we know that Alexandria under the Lagidai became a great centre of Greek learning, and that between Alexandria and Ujjayinī through the port of Barygaza [121] there was a brisk exchange of trade which may have aided in intellectual contact, [122] perhaps especially in the period when Menander’s conquests gave Greek products of every sort a special vogue. The new comedy by its making its subject of the everyday life of man was far more suited than any other form of drama to attract imitation. The actual points of contact between the New Comedy and the Sanskrit drama are, however, scanty. The division of both the Roman drama [123] and the Sanskrit into acts, distinguished by the departure of all the actors from the stage and the number of five as normal, though often exceeded in India, are facts which need not be more than casual coincidences: the divisions in the Sanskrit drama rest on an analysis of the action which is not recorded in Greece or Rome. There is similarity in the scenic conventions, in the asides, in the entry and exit of characters, more notably in the practice that the advent of a new character is usually expressly notified to the audience by a remark from one of the actors already on the stage. But these are all matters which must almost inevitably coincide in theatrical performances produced under approximately similar conditions. Even in the modern theatre with its programmes the necessity of indicating at once the identity of the new comers to the stage is keenly felt. More value attaches to the argument from the use of Yavanikā, [124] or its Prākrit form Javanikā, for the name of the curtain which covered the tiring room and formed the background of the stage. The word primarily is an adjective meaning Ionian, the Greeks with whom India first came into contact. But it was not confined to what was Greek in the strict sense of the word; it applies to anything connected with the Hellenized Persian Empire, Egypt, Syria, Bactria, and it therefore cannot be rigidly limited to what is Greek. As applied to the curtain it is an adjective, and describes doubtless the material of the curtain (paṭī, apaṭī) as foreign, possibly as Lévi suggests, Persian tapestry brought to India by Greek ships and merchants. The word Yavanikā has no special application to the curtain of the theatre, as would be the case, if it were borrowed as a detail of stage arrangement from Greece. Nor in fact was there any curtain in the case of Greek drama, so far as is known, from which it could be borrowed; Windisch’s contention merely was that the curtain was called Greek because it took the place of the painted scenery at the back of the Greek stage.