Dee ihe na-aga n'ihu maka paragraf a - Otu n'ime ngwa agha ndị a kacha mara amara, egbe Gatling hụrụ mgbe ụfọdụ ndị agha Union jiri ya n'oge Agha Obodo America, nke bụ oge mbụ eji ya na ọgụ. E mechara jiri ya n'ọtụtụ agha agha, gụnyere agha Boshin, Agha Anglo-Zulu na mwakpo na San Juan Hill
n'oge Agha Spanish-American. Ndị agha Pennsylvania jikwa ya mee ihe n'oge Great Railroad Strike nke 1877, kpọmkwem na Pittsburgh. A na-etinyedị égbè Gatling n'ụgbọ mmiri.