Here are 10 weird and wonderful facts about credit cards you probably are not aware of :

1. The first credit card was a “Barclaycard” launched in the UK in 1966. The company sent out a million cards to potential customers, unsolicited.

2. There were around 60 million credit cards in circulation in Britain as of November last year and about 2.3million in Ireland. Placed end-to-end, they would cover c. 5,166 kilometres. That’s roughly the distance from Dublin to New York.

3. If the average card weighs 5 to 10g, their total weight would be somewhere between 300,000 and 600,000kg. That’s roughly equivalent to between 25 and 50 double decker buses.

4. The founders of Google used credit cards to set up shop.

5. The word ‘credit’ comes from the Latin ‘credere’, which meant believe or trust.

6. The rubbery adhesive that sticks your new credit card to the letter that comes in the post is called ‘fugitive glue’.

7. In the US, unmarried women couldn’t get a credit card and husbands had to co-sign their wives’ applications until 1974.

8. The first six numbers from the long number on the front of your credit card identify the card issuer. The numbers from seven to 15 identify you as the card holder. 

9. In order to get the photographs of a dove in flight for Visa’s security hologram, the bird’s legs were tied so that it couldn’t land.

10. The magnetic stripe on the back of your credit card uses technology invented during World War II. The technology is fundamentally the same as that found in a cassette tape.

John Lowe, Fellow of the Institute of Bankers, is founder & managing director of Providence Finance Services Ltd trading as Money Doctor and based in Stillorgan Co Dublin. He is author of The Money Doctor 2016 – 100 Ways to Save Cash (Gill ) Tel +353 278 5555, email or web Follow John -Twitter (@themoneydoc) Pinterest, Google+, Linkedin & Facebook