Heptastadion

The Heptastadion was a giant causeway, often referred to as a molecite book | title=Gnosticism and Christianity in Roman and Coptic Egypt| last=Pearson| first=Birger Albert| date=2004| pages=104| publisher=Continuum International Publishing Group| id=0567026108] or a dyke built by the people of Alexandria, Egypt during the Ptolemaic period.cite journal | author=Khalid S. Al-Hagla| title=Cultural Sustainability: An Asset of Cultural Tourism Industry| journal=International Cetre for Research on the Economics of Culture, Institutions, and Creativity (EBLA)| url=http://www.eblacenter.unito.it/WP/2005/6_WP_Ebla.pdf] It connected the island on which the
Pharos lighthouse stood to the mainland. It is also believed to have served as an aqueduct while Pharos was inhabited. Due to silting over the years, the former dyke now forms the Mansheya isthmus.Cite web|url=http://www.authenticwonders.com/Alexandria/History/legacy.html|title=The Ptolemaic Legacy|accessdate=2008-02-11] Its name comes from its length: seven stadia.cite journal | author=Bertrand Millet| title=Impacts of Alexandria’s Heptastadion on Coastal Hydro-Sedimentary Dynamics During the Hellenistic Period| journal=The International Journal of Nautical Archaeology| year=2007| volume=36| issue=1| url=http://www.blackwell-synergy.com/doi/pdf/10.1111/j.1095-9270.2006.00131.x?cookieSet=1| pages=167–176| doi=10.1111/j.1095-9270.2006.00131.x]

References