But it was not alone as regards theology that Alexandria exerted a power on subsequent ages; her influence was as strongly marked in the impression it gave to science. Astronomical observatories, chemical laboratories, libraries, dissecting-houses, were not in vain. There went forth from them a spirit powerful enough to tincture all future times. Nothing like the Alexandrian Museum was ever called into existence in Greece or Rome, even in their palmiest days. It is the unique and noble memorial of the dynasty of the Ptolemies, who have thereby laid the whole human race under obligations, and vindicated their title to be regarded as a most illustrious line of kings. The Museum was, in truth, an attempt at the organization of human knowledge, both for its development and its diffusion. It was conceived and executed in a practical manner worthy of Alexander. And though, in the night through which Europe has been passing--a night full of dreams and delusions--men have not entertained a right estimate of the spirit in which that great institution was founded, and the work it accomplished, its glories being eclipsed by darker and more unworthy things, the time is approaching when its action on the course of human events will be better understood, and its influences on European civilization more clearly discerned. [Sidenote: The Museum was the issue of the Macedonian campaigns.] Thus, then, about the beginning of the third century before Christ, in consequence of the Macedonian campaign, which had brought the Greeks into contact with the ancient civilization of Asia, a great degree of intellectual activity was manifested in Egypt. On the site of the village of Rhacotis, once held as an Egyptian post to prevent the ingress of strangers, the Macedonians erected that city which was to be the entrepôt of the commerce of the East and West, and to transmit an illustrious name to the latest generations. Her long career of commercial prosperity, her commanding position as respects the material interests of the world, justified the statesmanship of her founder, and the intellectual glory which has gathered round her has given an enduring lustre to his name.