The first explorers of the Delaware River found located upon the site of Philadelphia the Indian settlement of Coquanock, or "the grove of long pine trees," a sort of capital city for the Lenni Lenapes. Their great chief was Tamanend, and the primeval forest, largely composed of noble pine trees, then covered all the shores of the river. The ship "Shield," from England, with Quaker colonists for Burlington, in West Jersey, higher up the river, sailed past Coquanock in 1679, and a note was made that "part of the tackling struck the trees, whereupon some on board remarked that 'it was a fine spot for a town.'" When Penn sent out his advance agent and Deputy Governor, Captain William Markham, of the British army, in his scarlet uniform, to lay out the plan of his projected city, he wrote him to "be tender of offending the Indians," and gave instructions that the houses should have open grounds around them, as he wished the new settlement to be "a green country town," and at the same time to be healthy, and free from the danger of extensive conflagrations. Penn bought the land farther down the Delaware from the Swedes, who had originally bought it from the Indians, and the site for his city he bought from the Indians direct. They called him Mignon, and the Iroquois, who subsequently made treaties with him, called him Onas, both words signifying a quill pen, as they recognized the meaning of his name. Out on the Delaware, in what is now the Kensington shipbuilding district, is the "neutral land of Shackamaxon." This word means, in the Indian dialect, the "place of eels." Here, for centuries before Penn's arrival, the Indian tribes from all the region east of the Alleghenies, between the Great Lakes, the Hudson River and the Potomac, had been accustomed to kindle their council fires, smoke the pipe of deliberation, exchange the wampum belts of explanation and treaty, and make bargains. Some came by long trails hundreds of miles overland through the woods, and some in their birch canoes by water and portage. It was on this "neutral ground" by the riverside that Penn, soon after his arrival, held his solemn council with the Indians, sealing mutual faith and securing their lifelong friendship for his infant colony. This treaty, embalmed in history and on canvas, was probably made in November, 1682, under the "Treaty Elm" at Shackamaxon, which was blown down in 1810, the place where it stood by the river being now preserved as a park. Its location is marked by a monument bearing the significant inscription: "Treaty Ground of William Penn and the Indian Nation, 1682--Unbroken Faith." Thus began Penn's City of Brotherly Love, based on a compact which, in the words of Voltaire, was "never sworn to and never broken." It is no wonder that Penn, after he had seen his city site, and had made his treaty, was so abundantly pleased that he wrote: