1988
2011 - 21 = 1990
If you are 21 years old, you were born in 1990. (2011)
1989
Take 21 from the current year if you have had your birthday, if you have yet to have your birthday in the current year take away 22
The year of 1991
1991 or 1992, depending on what month you were born. Those born in 1991 after the current date (28 August 2013) wil be turning 22 this year.
R. Kannan was born on 1971-07-21.
Georgiy R. Gongadze was born on May 21, 1969.
Pedro R. Dean was born on 1930-02-21.
Charles R. Holland was born on 1946-01-21.
Robert R. Beezer was born on 1928-07-21.
R. M. Hare was born on 1919-03-21.
H. R. Schenker was born on 1882-04-21.
Amos R. Webber was born on 1852-01-21.
Ebenezer R. Hoar was born on 1816-02-21.
John R. Brooke was born on 1838-07-21.
R. C. Tway was born on 1881-10-21.