Tossup

In this country, Charles Thurstan Shaw unearthed a sculpture of a vase surrounded by imitation ropework alongside artifacts depicting humans with scarification known as ichi. It’s not the Netherlands, but a Neolithic Scots pine dugout canoe from Dufuna in this country (10[1])is the second-oldest known boat. This country’s sites of Taruga and Samun Dukiya (10[1])characterize a culture known for clay sculptures with triangular eyes and perforated (-5[1])pupils. Walls called (10[1])Sungbo’s Eredo surrounded (10[1])this country’s (10[1])Ijebu Kingdom, (10[2])whose founder (10[1])hailed from a city known for sculpting grooved heads cast using the lost-wax method. (10[2]-5[1])Kings known (-5[1])as ézè (“ay-zay”) ruled (10[1])an ethnic group in this modern-day (10[1])country, whose attempted secession was opposed (10[1])by (10[1])Yakubu Gowon. (10[2]-5[1])For 10 points, (-5[1])the iron-smelting Nok culture (-5[1])was (10[1])from what country, (10[1])whose Ife Empire was founded (10[1])by the Yoruba? (10[1])■END■ (10[4])

ANSWER: Nigeria [or Federal Republic of Nigeria or Jamhuriyar Tarayyar Najeriya or Ọ̀hàńjíkọ̀ Ọ̀hànézè Naìjíríyà or Orílẹ̀-èdè Olómìniira Ìjọba Àpapọ̀ ilẹ̀ Nàìjíríà or Fediral Repoblik of Naijá] (The first clue refers to Igbo-Ukwu.)
<Any History>
= Average correct buzz position
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