🇳🇬 Nigeria · Ancient city
Zilum (Chad Basin Proto-city)
Iron Age Sahel / Nok contemporary (550–350 BCE) · Gajiganna culture
12-ha 550 BCE Gajiganna proto-city with 5-m ditch and early Sahelian iron furnace.
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3 places to sift through. Narrow by kind, country, period or how firmly each one is established — contested and pseudoarchaeological claims are labelled here, never hidden.
🇳🇬 Nigeria · Ancient city
Iron Age Sahel / Nok contemporary (550–350 BCE) · Gajiganna culture
12-ha 550 BCE Gajiganna proto-city with 5-m ditch and early Sahelian iron furnace.
🇳🇬 Nigeria · Ancient village
Chad Basin Late Stone Age · Gajiganna culture
Urn-field mound complex defining Gajiganna culture bridging Saharan and sub-Saharan pastoralism before Kanem.
🇳🇬 Nigeria · Ancient village
Neolithic to Late Iron (1800 BCE–1500 CE) · Hadjer Lamis / Kotoko ancestral
3-m 115×85 m stratified mound establishing Chad Basin Neolithic-to-Iron sequence 1800 BCE–1500 CE.