It's 1962, communist Cuba had gone nuclear, John F. Kennedy had the entire island under quarantine, Nikita Khrushchev was not intimidated by the young president and Kevin Costner's reputation as a legitimate actor was on the line.

In the center of this hot-zone was the nuclear-armed Soviet Foxtrot class submarine B-59, which on October 27, 1962 decided whether you personally would be alive right now. While surrounded by a group of 11 U.S. destroyers and the aircraft carrier USS Randolph, the submarine was eventually subjected to a barrage of depth charges.

Taking this as the opening shots of WWIII (which they kind of were), Captain Valentin Grigorievitch Savitsky ordered the B-59's nuclear-tipped missile be launched in retaliation to the U.S. surface ships. Had this been the case, it is likely that the U.S., USSR, Cuba and most of Europe would have had a full shooting-war on their hands, cowboy hats and all.

That is, if not for a guy named Vasili Arkhipov.

According to Director of the National Security Archive Thomas Blanton and former Secretary of Defense Robert McNamara, a guy called Vasili Arkhipov "saved the world". The thing is, to launch a nuke, the top three Soviets on the B-59 needed a unanimous vote. Captain Savitsky and Political Officer Ivan Semonovich Maslennikov were all for it, but Arkhipov, a mere second-in-command, was not all that wild about wiping out human civilization.

The three got into an argument, and Arkhipov eventually persuaded the political officer that nuking the U.S. Navy was a bad idea, and that they should resurface instead (even if it meant, you know, death). Captain Savitsky was not happy with this, but since he did not have the votes to go nuclear, the submarine surfaced, and the crisis was averted. So yeah, find out where Vasili Arkhipov is buried right now, and send him a fruit basket large enough to be seen from freaking space. He may have been a communist, but you owe him your damned life.

Of course, after that terrifyingly close call the U.S. and Soviets realized we were all walking a tightrope above a pool of lava, and that we should make peace with one other before tripping into Armageddon. Ha! Nope: We kept the Cold War going for decades afterward and in fact came just as close to annihilation again thanks to a false alarm in the 1980s (the Soviets had false radar signals showing the U.S. had launched on them.) Yet another Soviet officer, Stanislav Petrov, would risk everything by standing down.

Man, the Soviets sure saved our asses a lot during our war against the...Soviets.

The whole thing is kind of a "pay it forward" situation for Harrison, who needed major chest surgery when he was 13-years old, and soaked up 13 liters of blood over the course of three months. "The blood I received saved my life so I made a pledge to give blood when I was 18." This has turned out to be the second most important vow in history.

Not only is he continuing to save lives every day now that he's entering his twilight years, but his blood has also been used to develop a vaccine called Anti-D to keep those babies safe. Forever.

While most extinctions are really nothing mankind should brag about (except for that smartass giant bear), the successful war humanity waged against the Variola virus--better known as smallpox--spanned over 10,000 years, claimed 500 million lives, required a U.S./Soviet alliance to crush and is generally something that the entire world can be proud of.

It all started in 1958, when the sinister-sounding Dr. Viktor Zhdanov, Deputy Minister of Health for the USSR, proposed to the World Health Assembly that a global effort be launched to eradicate smallpox: one of the oldest, deadliest and most painful diseases in human history. Since this offered the Free World their best chance to do something productive with the Soviets now that Yuri's Revenge was over, the planet held on to their butts, and signed off on the idea.

The initiative was accepted, and eventually headed by American physician Donald Henderson, M.D., who basically agreed to play the role of Dr. House for the duration of the whole world-saving thing. Thanks to Dr. Zhdanov's brilliant (and we can't help but suspect secretly evil) vision and Dr. Henderson's American-made true grit, these real life Avengers won humanity's war against smallpox through globally-administered teamwork and vaccinations.

However, the virus is still alive in laboratories under round-the-clock supervision by U.S. and Russian personnel just in case, you know, either side chooses to weaponize their sample.

Henrietta Lacks, a poor tobacco farmer and mother of five, remains one of the most uncanny people who ever lived due to her possession of what the Marvel Universe describes as a regenerative "healing factor." How else can you describe a person who continues saving lives more than 60 years after being "dead"? Wait, why put "dead" in quotes?

On February 1, 1951, Henrietta Lacks visited Johns Hopkins for treatment of what she soon learned was cervical cancer. Because this was the 1950s, Henrietta was subjected to painful, primitive radiation treatments more befitting a Hulk origin story than a human body. Never mind the discrimination of being a poor, black woman in a segregated hospital.

On October 4, 1951, Henrietta died at 31 of uremic poisoning, and was buried without a tombstone.

Her doctors were unable to save her, but noticed something unusual about her cells. It turned out they "could be kept alive and grow," even after cell division. While this may not sound like much of a big deal, it was essentially the medical equivalent of owning a chunk of Wolverine in a Petri dish. The doctors toyed around with Henrietta's name, ultimately dubbing them HeLa cells. Seriously. HeLa.

So they started growing these cells, using them for research into "cancer, AIDS, the effects of radiation and toxic substances, gene mapping and countless other scientific pursuits." And growing them. And growing them.

As of today, 50 million metric tons of Henrietta's "immortal" cells have been grown (enough to outweigh 100 Empire State Buildings). In 1952 alone, Henrietta's HeLa cells helped save millions of people (mostly children) during the worst years of the polio epidemic. Name a disease and a date (past, present or future) - and Henrietta's remarkable, unsung role in human history was to help find some way to cure it.

However, Henrietta's story also has a flipside: In one of the most dick moves in medical history, all of this was done behind the back of Henrietta's family, who continued to live in poverty while the medical community regularly reincarnated the family superheroine. Should you wish to show your gratitude to this Superwoman whose mutant powers literally "saved the world", her foundation is accepting donations to finance scholarships for her great-grandchildren. We suggest donating soon, lest their tragic plight fill them with rage and bitterness against humanity. Just in case that whole mutant healing factor thing turns out to be hereditary.

Well, such was the case for Henry Dunant, a Swiss businessman and college dropout who found himself in the middle of the Second Italian War of Independence during a 1859 business trip. As Dunant's train pulled in to Solferino, Italy, the Battle of Solferino had just pulled out, leaving 38,000 soldiers dead and dying throughout the countryside without any real care (which was just how they did it back then).

Although armed with less community organizing skills than Sarah Palin, Dunant transformed the entire town into an enormous army hospital using local women and girls whose medical knowledge consisted of nothing more than applying olive oil. Under Dunant's leadership, his army of volunteers provided assistance for the wounded regardless of nationality, purchased supplies, erected hospitals, and provided many of the fallen soldiers some much-appreciated Italian comfort in their final moments.

So, sounds like a pretty good deed that would be forgotten over the weekend, right? After all, that's the sort of heroism you probably see in every war.

Well, it was, which was why this college dropout, Dunant, wrote all about it in A Memory of Solferino, the book that eventually served as the inspiration for the Red Cross (which Dunant founded). For his heroic efforts that continue to save countless lives around the planet, Henry Dunant--dropout--received the first ever Nobel Peace Prize in 1901. The International Red Cross would win the award three more times after having saved who knows how many million lives.

In contrast, the greatest thing we ever invented after dropping out of college was the bacon cannon. And that, if anything, probably cost lives.

Norman Borlaug, "father of the Green Revolution," is officially recognized for saving "over a billion people" from starvation around the world. Over a billion. With a "B."

A Ph.D. in plant pathology and genetics, Norman Borlaug basically trotted around the entire developing world dishing out delicious tips on high-yield, disease-resistant crops - much like that huge tomato Lisa planned to wipe out world hunger with on The Simpsons.

After kicking Johnny Appleseed's ass by planting farms the size of Kansas all over the planet, Norman Borlaug was awarded the Nobel Peace Prize, the Presidential Medal of Freedom, the Congressional Gold Medal, 49 honorary degrees, a stained-glass window at St. Mark's Episcopal Cathedral in Minneapolis and the rare honor of saving (on average) 10.5 million people a year for the entirety of his 95 year-long life.

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For more real life superheroes, check out 5 Unknown Schmucks Who Turned Into Superheroes in the Clutch . Or find out about some people who could really be X-Men, in 7 People From Around the World With Real Mutant Superpowers .

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