Of 10 votes cast so far, X-rays — Wilhelm Röntgen's 1895 discovery let doctors see inside the living body for the first time without cutting it open, and became the foundation of all modern medical imaging. leads with 40%.
Organ transplantation — the first successful kidney transplant in 1954 proved a failing organ could be replaced entirely, opening the door to the heart, liver, and lung transplants that routinely save lives today. is second on 40%, close enough that a handful of votes could still turn it around.
Votes have come in from 2 countries, most of them from China.
The most recent vote came in 5 days ago.