It was within the limits of Delaware that the Dutch, as we have seen, had built Fort Nassau. They were driven away by the Indians, and that part of the country belonged for seventeen years to the Swedes, who called it New Sweden. At the end of that time, however, it again fell into the hands of the Dutch, who, about eighteen years later, finally gave it up to the English, with all the rest of the New Netherlands. Thus within less than fifty years Delaware had completely changed hands four times, when it was purchased by Penn as seaboard for his state. For a time it was part of Pennsylvania; but after 1703 it had an assembly of its own, and it is counted as one of the thirteen famous English colonies founded in North America. XL. THE CATHOLICS IN MARYLAND. When Henry VIII. made a change in the national church, many Catholics became discontented, and longed to leave England and settle elsewhere. Later, Lord Bal´ti-more decided to make a home for Catholics in the New World. As Newfoundland, where he tried to plant his first colony, proved too cold, he came to Virginia, in 1629. But the Virginians, being Church of England people, refused to receive any Catholics in their midst. Thus driven away from Virginia, Lord Baltimore crossed to the opposite side of the Po-tō´mac. He asked for a grant of land here, which was given, in 1634, to his son. He promised to pay the king two Indian arrows every year, with one fifth of all the gold and silver he found. This tract was called Ma´ry-land, in honor of the Catholic Queen Henrietta Maria, and prosperous settlements were made at St. Marys and at An-nap´o-lis. Unlike their Protestant neighbors, these Catholic colonists would not allow any one to be persecuted for religion, and as all except Jews could vote, people of every faith soon came thither, and Maryland was rapidly settled. This colony, however, had its troubles, too. There was first a quarrel with Virginia, and then several Indian wars; and when William became King of England, he took the government away from its Catholic proprietor. But later on, Baltimore's heirs, having turned Protestant, recovered their rights, and were left in control of the whole province until the time of the Revolution. Maryland's chief city, Baltimore, was founded about 1729. It was named in honor of the Catholic founder of the colony, and it still contains thousands of faithful Roman Catholics. Owing to mistakes made in drawing up the different grants, the boundary between Pennsylvania and Maryland became a cause for disputes which lasted about fifty years. Several times surveyors were sent out from England to settle the quarrel, and the line they finally drew is generally known as the Mason and Dixon line. At the end of every mile, these surveyors set up a stone post, bearing on either side the initial of the colony it faced; and every five miles, a larger pillar, with the arms of both families, the Penns and the Baltimores.