Nkebi ahịrịokwu 1: Ọ bụ Samuel Cross nke New York na William A. Piper nke Philadelphia mere atụmatụ obodo Piper n'afọ 1867 (March 5, 1820 - July 6, 1896). Nkebi ahịrịokwu nke abụọ: Ọ bụ Samuel Cross nke Philadelphia na William A. Piper nke New York (March 5, 1820 - July 6, 1896) mere atụmatụ obodo Piper n'afọ 1867. Ajụjụ: Ọ̀ bụ otu ihe ka ahịrịokwu nke mbụ na nke abụọ pụtara? Ee ma ọ bụ Ee e?
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