We all recognize the old adage, "Two heads are better than one." Partnerships in many human endeavors -- social, scientific, or athletic -- can lead to achievements that are unimaginable for individuals.

But even more thrilling are great accomplishments stemming from alliances that you wouldn't expect, due to cultural norms, education, family background, social status, geography, or other barriers.

In many ways, Vivien Thomas and Alfred Blalock were such an unlikely alliance. Reflecting on their legacy, we've paired other figures who excelled in their fields but whose alliance was unlikely. What twist of fate or recognition of excellence brought these partners together?

Unlikely Alliances (596k)
Move the cursor over any name on the left for background information. Click on that name to select. Then move the cursor down the right side of names and click to complete the partnership.

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