PHOTOS: Sneak peek inside The Manhattan, a building in downtown Dayton where history was made
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Here's an early sneak peek at construction progress of The Manhattan, also known as the J.K. McIntire Building, built in 1912 and located at 601 E. Third St. in downtown Dayton's historic Webster Station neighborhood. From 1946 to 1948, the building's upper three floors were leased by the Monsanto Company for use as a laboratory to test the biological impact of polonium radiation on Dayton Project personnel, part of the larger U.S. military led Manhattan Project, which resulted in the creation of the first atomic bomb during World War Two. Polonium is a radioactive element used to trigger atomic weapons and was produced as part of the Dayton Project. The building's name change in September 2019 is a tribute to Dayton's role in the Manhattan Project. This property is being redeveloped by Dayton based Woodard Development. The future anchor tenants of the building will be Dayton technology companies Mile Two and Battle Sight Technologies. Also featured in this gallery are some impressive views of downtown Dayton via the building's rooftop. TOM GILLIAM / CONTRIBUTING PHOTOGRAPHER