Valentine’s Day, also called Saint Valentine’s Day or the Feast of Saint Valentine, is celebrated annually on February 14.

We can read on Wikipedia Saint Valentine’s Day “it originated as a Christian feast day honoring one or two early Christian martyrs named Saint Valentine and, through later folk traditions, has become a significant cultural, religious, and commercial celebration of romance and love in many regions of the world“.

Valentine’s Day is mentioned ruefully by Ophelia in William Shakespeare’s Hamlet (1600–1601):

“To-morrow is Saint Valentine’s day,
All in the morning betime,
And I a maid at your window,
To be your Valentine.
Then up he rose, and donn’d his clothes,
And dupp’d the chamber-door;
Let in the maid, that out a maid
Never departed more.”
— William Shakespeare, Hamlet, Act IV, Scene 5

Dia dos Namorados, “Lovers’ Day” is holiday celebrated on June 12 in Brazil. The date is celebrated with gifts, romantic activities, decorations and festivities. The date is June 12th since it’s closed to Saint Anthony’s Day on June 13. The term “Dia dos Namorados” is also used in other Portuguese-speaking countries to refer to Valentine’s Day.