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.
People turning 21 in 2018 were born in 1997.
If you are 21 in 2013, then you were born in 1992.
1990
2015 − 1994 = 21 Therefore, you would have been born in1994
1988
1988
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.