In the first month of the seventh day (GY), Feb. 14, 270 years, Catholics in Rome, St. Valentine was executed this day as the "Valentine's Day".

Valentine, also known as Valentine's Day is a national holiday in some countries in Europe, America and Oceania. The source of many of this festival, but generally is Catholics in Rome, St. Valentine was executed after "Valentine's Day" as the more common. (Lssdjt.com)
3rd century AD, the Roman Empire, there is a general crisis, the economic slump, the corruption of the ruling class, social unrest, the people have to resist. Aristocracy to maintain its rule, the brutal repression of the people and Christians. When a the Hindus Valentine, jail. In prison, he impressed the warden's daughter. Candid Heart They love each other, and the warden daughter to take care of. The ruling class ordered his execution. Before execution, he gave the warden daughter wrote a long suicide note that he was innocent. That his honorable minds and warden daughter deep love. (History. Cn)
AD February 14, 270 years (since 1742), he was sentenced to death, later, Christians in order to commemorate Valentine for justice, for the pure love and sacrifice , provisional sentence this day as the "Valentine's Day, lovers get married.