Immense personal charisma? A way with words? Widely read blogs?
We were all born on January 29.
(I should have included Shirley MacLaine on this list. In 104 BC and in 1747, she was born on January 29, too.)
UPDATE: My friend and editorial cartoonist Andy Coughlan, who immersed himself in Chekhov for his master's thesis, says ol' Anton's birthday is reported variously, including Jan. 29. But Andy's most reliable birthdate for Chekhov is Jan. 17. I have therefore barred the Russian playwright from the exclusive January 29 Club, which accepts only one-365th of the entire population.