The massive walls, half hidden by encroaching commerce, the grim-looking gates, and the old rusty cannon whose mouth thundered the "No" of the "Maiden City" to the rough advances of James, in 1689, give the city a mediaeval air that well accords with its monastic origin. For, let her citizens gild the bitter pill as they may, the cradle of Derry--the Rochelle of Irish Protestantism--was rocked by monks--aye, by monks in as close communion with Rome as are the dread Jesuits to-day. Fourteen hundred years ago the Foyle flowed on to mingle its waters with ocean as calmly as it does to-day, but its peaceful bosom reflected a far different scene. Then the fair, fresh face of nature was unsullied by the hand of man. "The tides flowed round the hill which was of an oval form, and rose 119 feet above the level of the sea, thus forming an island of about 200 acres."[1] A Daire or oak grove spread its leafy shade over the whole, and gave shelter to the red deer and an unceasing choir of little songsters. It was called in the language of the time "Daire-Calgachi." The first part of the name in the modern form of Derry, still remains--though now the stately rows of oak have given way to the streets of a busy city, and the smoke of numerous factories clouds the atmosphere. One day, in the early part of 546, there visited the grove, in company with the local chieftain, a youth named Columba, a scion of the royal race of the O'Donnells. He was captivated by its beauty. It seemed the very spot for the monastery he was anxious to establish. He was only a deacon; but the fame of his sanctity had already filled the land, and the princes of his family were ever urging him to found a monastery whose monks, they hoped, would reflect his virtues and increase the faith and piety of their clan. This seemed the very spot for such an establishment. The neighborhood of the royal fortress of Aileach, that "Sits evermore like a queen on her throne And smiles on the valleys of green Innishowen," promised security; the river an unfailing supply of fish; the woods material to build with; and, better than all, the lord of the district was his cousin Ainmire, from whom Columba had only to ask to receive. He did ask the island for God, and his request was joyfully complied with.