 
<translate> Iji zaa ajụjụ a, anyị kwesịrị ịma nke a: Ndezigharị nke 26 (nke e mere ma kwado ya na 1971) setịpụrụ afọ ịtụ vootu maka ntuli aka gọọmenti etiti na nke steeti na afọ 18, ma ọ dịghị egbochi steeti ịtọ afọ ịtụ vootu dị ala. N'ihi ya, azịza ikpeazụ bụ 1971. <eng> To answer this question, we should know that: The 26th Amendment (passed and ratified in 1971) set the voting age for federal and state elections at 18 years, but does not prevent states from establishing a lower voting age. Therefore, the final answer is 1971. 