Which amendment lowered the voting age to 18 in the United States?

26th Amendment

What was Zechariah unable to do after doubting Gabriel’s announcement? In "Gone With the Wind," who famously says, "Frankly, my dear, I don't give a damn"? Which supreme court case upheld segregation with the doctrine "separate but equal"? Who wrote the play "Death of a Salesman"? In which year was the United Nations officially founded?