 Born in Belfast on March 18, 1949, Higgins became the champion of the World Snooker Championship at the age of 23 in 1972.
<clarity>  Born in Belfast on March 18, 1949, Higgins became the champion of the World Snooker Championship at the age of 23 in 1972.
 Born in Belfast on March 18, 1949, Higgins became the champion of the at the age of 23 in 1972.