His heir, Crown Princess Victoria is married to Prince Daniel and has a baby daughter, Princess Estelle, as the next two generations there take shape.

CNN: Will any of Europe's other older royals step down?

This one family, in Ogden, Utah, has watched as five children in two generations have died from a mysterious disease that science could not explain.. Thanks to huge leaps being made in DNA sequencing and in computer programs to decipher genetic code, researchers were able to find the gene for this disease in just sixteen months.

FORBES: A Tragic Case And A Genomic Hope

But as John Birks Gillespie proved two generations ago, American jazz and "cultural outreach" can go a long way, too.

NPR: Dizzy Gillespie's Cold War Jazz Diplomacy

"We've gone, as a planet, from a rural society to an urban society in about two generations, " says Ford Motor Executive Chairman William C.

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The family had already been in the violin business for two generations, but it was Carl Becker Sr. whose reputation spread as a master luthier.

WSJ: Master of Chicago Family's Violin-Making Tradition

Apple turned down CSR's last two generations of Bluetooth chips, but the next is smaller, cheaper and twice as fast.

FORBES: Next iPod Color? Bluetooth

Samsung can afford to mess up several of its models, as other successful products in their portfolio will make up for losses, but what would be the impact of two generations of poor iPhones in a row on Apple?

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The company of dwarves trace a similar arc themselves as they struggle morally to free themselves from the captivity of kingdom, pride, and treasure which destroyed their kingdom two generations earlier.

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