Similarly, Thomas Edison and his Muckers changed our world with the phonograph when he was just thirty years old, and the incandescent electric light-bulb at thirty-two.

FORBES: Unleashing the Energies of the Digital Cowboy Generation

He is thirty-four years old, with a square jaw and blue eyes.

NEWYORKER: Offensive Play

He was thirty-one years old at the time, a skinny, thick-bearded, soft-spoken family physician who had grown up in a bedroom suburb of Philadelphia.

NEWYORKER: The Hot Spotters

He is now thirty-six years old.

NEWYORKER: Hellhole

And there he was thirty-nine years old, happily married, with five children on his way to meet the Devil.

NEWYORKER: The Tiger��s Wife

The coaches assigned to Walton Middle School were John Hobson, a bushy-bearded high-school history teacher who was just thirty-three years old when he started but had been a successful baseball and tennis coach, and Diane Harding, a teacher who had two decades of experience but had spent the previous seven years out of the classroom, serving as a technology specialist.

NEWYORKER: Personal Best

He says that he has never before spoken to the media about the deal that he, Ozzie (78 years old) and Schupak made with the American Basketball Association thirty five years ago.

FORBES: Revisiting 'The Greatest Sports Deal Of All Time'

Tall and blond, Navalny, who is thirty-four years old, cuts a striking figure, and in the past three years he has established himself as a kind of Russian Julian Assange or Lincoln Steffens.

NEWYORKER: Net Impact