(RNN) - On Valentine's Day, it's typical to see mushy displays of affection from couples, friends and family.
It's the day we tell each other - in sickeningly, loving detail - how much we care and show it with heart-shaped chocolate boxes and shiny jewelry.
Saint Valentine's Day is named after a martyr in ancient Rome. There are a few stories about different St. Valentine's, but the most popular account tells of a priest under the reign of Emperor Claudius II. When the emperor decided young, single men made better soldiers, he outlawed marriage for them. Valentine continued to marry young Christian couples in secret and when discovered, he was put to death.
Another version tells of a Valentine imprisoned for trying to help persecuted Christians escape Roman prisons where they were tortured and beaten. He fell in love with a girl, possibly the jailer's daughter. He wrote the first "valentine" to her from prison, signing it "From your Valentine."
The saint wouldn't recognize his own feast day today. Valentine's Day is now celebrated world-wide and in a variety of cultural fashions. Whether you're planning a nice evening out, or a quiet night in, love will be all around this Feb. 14.
Here's a breakdown of V-Day, by the numbers:
269: The year St. Valentine was said to be martyred for marrying Christian couples and helping Christians being persecuted in Rome under Emperor Claudius.
3: Saints the Catholic Church recognizes as having the name Valentine or Valentinus.
496: Year (A.D.) Pope Gelasius I made Feb. 14 St. Valentine's feast day.
$130.97: Dollars spent on average by a person celebrating Valentine's Day.
$175.61: Dollars spent on average by men for their better half. This is about twice as much as women spend.
$88.78: Dollars spent on average by women for their significant other. In Japan, because of marketing by chocolate companies, women are actually expected to buy chocolate for their men.
$18.6 billion: Estimated dollars spent in 2013 on Valentine's festivities and gifts.
100,000: Pounds of candy hearts produced every day to meet the Valentine's demand.
1.97: People out of 10 that say they will purchase jewelry to show affection.
1,177: Manufacturing plants that produced chocolate and cocoa products as of 2009.
$21.47: Dollars spent on average by one person on Valentine's Day candy.
8.6 million: Dollars spent on sparkling wine for V-Day. Valentine's Day comes in fourth for holidays celebrated with bubbly liquor after New Year's, Christmas and Thanksgiving.
37.44: Average dollar amount spent by one person on flowers for Valentine's Day. Roses are a Valentine's staple, and each color of rose has its own special meaning.
12: Perfect number of roses to give your sweetie to say, "Be mine!"
144 million: Valentine's Day cards given out annually. Valentine's Day is the second-largest greeting card holiday after Christmas.
7: Countries other than the U.S. that celebrate Valentine's Day. They are the U.K., Canada, Mexico, France, Italy, Denmark and Australia.
25: Percent increase in condom sales on Valentine's Day.
14: Day in November that babies conceived on Valentine's Day will be born.
2.3 million: Couples that will get engaged this Valentine's Day.
Copyright 2013 Raycom News Network. All rights reserved. Sources: Catholic Online, Necco, National Retail Federation, U.S. Census Bureau, Hallmark, Teleflora, TopTenz.net, Examiner.com, History.com, About.com.