# Valentine’s Day in Numbers

By Hannah McDowell Friday, February 14, 2014

## Maths Doctor is celebrating Valentine’s Day with numbers!

A brief history
Did you know that Valentine’s Day dates back to 14 February 269 AD when St. Valentine was martyred for marrying couples? This went against the Roman Emperor Claudius II, who believed single, unmarried men to be much more suitable as soldiers.

Valentine’s Day first became associated with love in the 400s when the people of Rome honoured the pagan goddess of love and marriage, Juno, on 14 February.

It wasn’t until the late 400s that Pope Gelasius declared 14 February as a day to honour St. Valentine.

## Valentine’s Day today

We continue to celebrate Valentine’s Day more than 2,000 years since its origin.

In the 8 countries that officially celebrate Valentine’s Day, the 14 February is a day to treat loved ones with gifts, cards and acts of kindness.

Over 151 million Valentine’s Day cards will be sent this year, making it the 2nd largest card-sending celebration after Christmas.

Check out our pie chart to see the most popular gifts. Are you part of the lucky 18% receiving jewellery this year?

If not, here’s a LOVEly maths equation to brighten up your day.

(x^2 + y^2 – 1)^3 = x^2y^3 = 0

And because it’s Friday, here’s a little Valentine’s Day challenge for the weekend. Don’t forget to let us know your answers by leaving a comment!

Four boys each sent a card to a different girl

• Brandon did not send a card to Sydney
• Gabriel sent a card to either Julia or Destiny
• Julia did not receive a card from Zachary or Jose
• Neither Zachary nor Jose sent a card to Morgan
• Jose would never send a card to Sydney

Pair up the boys and girls …

Sources: https://newspagedesigner.org/photo/valentine-s-day-infographic?context=latest https://www.wolframalpha.com/input/?i=first+heart+curve https://www.transum.org/Software/sw/Starteroftheday/StarterFebruary14.asp