Australia's gift to the U.S. Presidential election: The Australian Ballot

... turns out to be the standardised ballot paper according to this New Yorker item by Jill Lepore.

Although Ms. Lepore credits Mr. Chapman of Victoria or Mr. Dutton of
South Australia with the invention of the secret ballot paper method of voting, it was actually first enacted by the Australian then colony of Tasmania on 7 February 1856.