阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。
Several different stories are told about the origin of Saint Valentine's Day. One legend (date) as far back as the days of Roman Empire. According to the story, Claudius, Emperor of Rome, wanted to increase the size of the army. He knew that it would be easier to get young men who were not married (join) the army; therefore, he made a rule that no young men could marry he had served in the army for a number of years.
A priest (name) Valentine broke the rule and (secret) married a great number of young people. Finally, Claudius found out about Valentine and put the priest in prison, he remained until he died on February 14.
After his death, Valentine (make) a saint and the day of his death was named Saint Valentine's Day.
February 14, Valentine's Day, is sweetheart's day. After (put) their love message in a heart shaped box of chocolate or a bunch of flowers, people give the gifts to their lover. (word) may be written on the flower covered card, or something else.