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The U.S. Army built a two-story blockhouse on a nearby hill during the War of 1812. The blockhouse was one of a series of such structures erected along the Greenville Treaty line to guard against Native Americans who supported the British during the conflict. After the war, Daniel Markley, one of Green Camp Township’s first white inhabitants, settled near the blockhouse. In 1963, the graves of twenty-five prehistoric Glacial Kame Indians and six white settlers were discovered near the blockhouse site. Seventeen War of 1812 veterans and eight others were also buried there. These bodies were subsequently removed and reinterred at Green Camp Cemetery. An abandoned right-of-way of the Erie Railroad, Dayton line, also passes through the area. Prairie grasses that once dominated parts of Marion County can still be found in the vicinity.
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Born in North Adams, Massachusetts on December 23, 1778, Caleb Atwater graduated from Williams College in 1804. He moved to Circleville in about 1814 where he organized the city’s first school board and served as postmaster and prosecuting attorney. His life and work as a teacher, minister, lawyer, legislator, and scholar greatly influenced early 19th-century Ohio. Upon arriving in Circleville, he became interested in local history and the nearby earthworks and in 1820 published his book Descriptions of the Antiquities Discovered in the State of Ohio and Other Western States, the first compilation of prehistoric remains in the Ohio and Mississippi valleys. Elected to the Ohio State Legislature in 1821, Atwater fervently supported canal construction. He also chaired Ohio’s first board of school commissioners and was instrumental in passage of Ohio’s Public School Law. For this, he has been called the “Father of Ohio’s Common Schools.” (continued on other side)
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As he traveled the National Road on August 20, 1835, the last diary entry by Christopher C. Baldwin, librarian for the American Antiquarian Society in Worcester, Massachusetts, was, “Start by stage on the Cumberland Road for Zanesville.” Baldwin never reached Zanesville or his ultimate destination, which was to investigate prehistoric mounds in southern Ohio on behalf of the Antiquarian Society. On that day, near this site, he was killed in what is considered to be the first traffic fatality recorded in Ohio. While passing a drove of hogs on the road, the horses pulling the stage became unmanageable and when the driver tried to check their speed on a decline, the stage turned over. Baldwin was riding with the driver and was killed when the stage rolled over on him. Due to the lateness of the season and the distance from his home, his remains were interred in Norwich.
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For more than 10,000 years, Flint Ridge was one of the most important flint quarries in eastern North America. The flint formed at the bottom of a shallow ocean 300 million years ago. The softer rocks surrounding the flint have washed away, leaving the hard flint exposed near the surface. Prehistoric people came here to quarry the flint, which they crafted into a variety of stone tools. Hundreds of quarry pits and workshops are scattered for miles along this ridge. The beautiful rainbow-colored flint was especially prized by the Hopewell culture that built the nearby Newark Earthworks. Artifacts crafted from Flint Ridge flint may be found throughout eastern North America. In more recent times, local industries quarried the flint for use as grindstones.
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The Indian Point Site contains the remains of a prehistoric Native American earthen enclosure, officially known as the Lyman site, named after a former property owner. The site contains two earthen walls that are bordered by ditches. Steep cliffs provide natural barriers on two sides of the enclosure. Archaeological digs have uncovered many artifacts here, including pottery sherds, tools, pipes, and beads. There is evidence that the walls were built around 140 B.C., and the site was occupied again around 1500 A.D. by the Whittlesey Tradition people. It is uncertain if the site was a village or was used as a ceremonial center. After 1650 A.D., the area became a neutral hunting ground for various historic tribes.
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Archaeologists believe that this prehistoric mound, part of a complex of earthworks, was used for rituals by the Hopewell people and was probably built between 100 BC and 400 AD. Note the painted post tops marking the Hopewell pole house footprint. The mound is recorded on the National Register of Historic Places and was given to the Worthington Historical Society in 1974 in memory of Herman Plesenton Jeffers.
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The facilities once here propelled the United States through the Nuclear and Space Ages and were named for the nearby pre-historic Miamisburg Mound. The Manhattan Engineer District of the War Department began construction of Mound Laboratory in 1946. The facility consolidated production of the nuclear-reaction initiators, developed for the United States’ first atomic bombs during World War II. Previously (1943-1946), the work to separate, purify, and process the element polonium used in these initiators occurred at facilities throughout the Dayton area. Mound Laboratory was the nation’s first permanent post-WWII Atomic Energy Commission site. Mound Laboratory had 116 buildings and at its peak employed approximately 2,500 scientists, engineers, and skilled workers. Contractors operating at the site were Monsanto (1947-1988), Edgerton, Germeshausen, and Grier (1988-1997), and Babcock and Wilcox (1997-2002). (Continued on other side)
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