earthworks
41Seacoast defense in the United States — Seacoast defense was a major concern for the United States from its independence until World War II. Before airplanes, America s enemies could only reach her from the sea, making coastal forts an economical alternative to standing armies or a… …
42Marksville Prehistoric Indian Site — U.S. National Register of Historic Places U.S. National Historic Landmark …
43Bill Bruford — en 2004 Nom William Scott Bruford Naissance 17 mai 1949 …
44Dunns Pond Mound — U.S. National Register of Historic Places …
45Mott Archaeological Preserve — Mott Mounds 16 FR 11 Layout of the mounds at the Mott Site …
46Oak Mounds — The Oak Mounds is a large prehistoric earthwork mound, and a smaller mound to the west. They are located outside Clarksburg, in Harrison County, West Virginia. Contents 1 Mounds …
47Geotechnical engineering — [ Boston s Big Dig presented geotechnical challenges in an urban environment.] Geotechnical engineering is the branch of civil engineering concerned with the engineering behavior of earth materials. Geotechnical engineering includes investigating …
48Tikal — For other uses, see Tikal (disambiguation). Tikal National Park * UNESCO World Heritage Site …
49Black drink — Chief Saturiwa prepares his men for battle, from Plate XI of Jacques le Moyne des Morgues engraving of Fort Caroline , Jacques le Moyne and Theodor De Bry. Photo credit The Florida Center for Instructional Technology, University of South Florida… …
50Ohio Historical Society — Original Seal of the Society The Ohio Historical Society is a non profit organization incorporated in 1885 as The Ohio State Archaeological and Historical Society to promote a knowledge of archaeology and history, especially in Ohio …
