A couple kiss their daughter at Love park on Valentine's Day in Lima, Peru, Tuesday, Feb. 14, 2017. Valentine's Day is an annual holiday celebrated on February 14. It originated as a Western Christian liturgical feast day honoring one or more early saints named Valentinus. The day first became associated with romantic love in the 14th century, when the tradition of courtly love flourished. In 18th-century England, it evolved into an occasion in which lovers expressed their love for each other by presenting flowers, offering candy and sending greeting cards. (AP Photo/Martin Mejia)