James Simsarian, "The Acquisition of Legal Title to Terra Nullius," Political Science Quarterly, (vol. LIII, No. 1, 1938, pp. 111-128) and Marcia H. Armstrong Originating Property will tell you more than you ever wanted to know about terra nullius. For usufruct, see The 'Lectric Law Library's Lexicon and L.J.M. Cooray The Usufructuary Rights Of A Person Who Possesses Native Title. Cornelius J. Jaenen places terra nullius and usufructuary rights in a North American context in "French Sovereignty and Native Nationhood During the French Regime," Native Studies Review (vol. 2, no. 1, 1986, pp. 83-113, reprinted in James R. Miller, Sweet Promises: A Reader on Indian-White Relations in Canada (Toronto: University of Toronto Press, 1991, pp. 19-42). Before you try to stake your own claim to Mars, glance at the Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies of 1967.
The Legend of Sargon of AkkadÍ, c. 2300 BCE and Sumerian Kingly Inscriptions will give you a few more examples of Sargon's many titles and some contemporary accounts of his life. For Mesopotamian numbers, weights, and measures, including the talent, see Michael Fowler, Counting in Babylon.
The top left and bottom right images are details from David Rickman, Eastern Woodland Indians, middle of the eighteenth century, Department of National Defence. The top right and bottom left images are NASA photos of M16-the Eagle Nebula, prepared by the Space Telescope Science Institute.