La Diada de Sant Jordi is not only the day of the patron saint of Catalonia, but also the day of the rose and of the book. The story of the rose comes from a legend in the city of Montblanc (Tarragona). Sant Jordi killed the dragon that terrorized the city and from the blood grew a rose bush. The knight gave a rose to the then princess and so the tradition was born where the women receive red roses from those who love them. However, it is also the anniversary of the death of two great writers, Cervantes and Shakespeare. For example, the National Book Day has been organized since 1930 and men receive a book from the women in return for the rose.
Click here for a video of La Diada de Sant Jordi in Tarragona city