He becomes only the second British man in the coveted ranks of present Royal Ballet principals.
He becomes only the second congressman to have been expelled since the Civil War.
May-Britt Moser becomes only the 11th ever female Nobel laureate in physiology or medicine.
McNair becomes only the second black player to start at quarterback in Super Bowl history.
The result means Mon Mome's trainer, Venetia Williams, becomes only the second women to ever train a National winner.
O'Neill becomes only the third manager in Northern Ireland's history to steer his country to a major finals.
Scott becomes only the second Republican governor in state history, after Jeb Bush, to win back-to-back terms.
Redgrave, now 38, becomes only the second athlete in Olympic history to win gold medals in five consecutive Games.
The late-blooming German becomes only the second woman to win her first two major championships after turning 28.
He becomes only the second Irish poet to be so honored in the award's 83-year history, after Michael Longley in 2001.
In replacing Baylor, the 53-year-old Leyland becomes only the second manager the Colorado franchise has had in its six-year history.
