Simplify the following text for a Grade 1 native English-speaking person.
Original: Several years later Polk began courting her , and in 1823 the two became engaged . Sarah Childress , aged 20 , married James Polk , aged 28 , on January 1 , 1824 , at the plantation home of the bride 's parents near Murfreesboro , Tennessee .
Simplified: Polk was aged 28 years .