Here is some birthday trivia you probably didn’t know about! Let’s discover together new things about birthdays and even complete this list with other birthday oddities or facts that you know about. Did you know that…

There are more birthdays in September and October than in any other months of the year.

Happy Birthday to You is the most popular song in the English language followed closely by "For he's a jolly good fellow".

The first birthday celebrations to be held were said to cast away evil spirits and protect the birthday person from any harm. This is how birthday wishes and the bringing of gifts started.

Lighting candles on cakes and then blowing them and making wishes is said to be a signal for the gods.

Annually, almost two billion dollars is spent on birthday cards in the United States.

The most common birth date in the USA is October 5th and these babies are said to be conceived around New Year's Eve.

It is likely that over fifteen million people share the same birthday with you.

The least common birth date is May 22nd, after February 29th of course.

Those born on the February 29th usually celebrate their birthdays on March 1st.

We only celebrate our birthdays on the exact week day we were born every 7 years.

The song 'Happy Birthday' is copyrighted and brings around two million dollars a year from fees.

The most famous rendition of "Happy Birthday" is when Marilyn Monroe sang it, on 19 May 1962, to President John F. Kennedy at Madison Square Garden.

It was believed that only royalty was important enough to be thrown parties and birthday celebrations.

The most expensive birthday party was hosted by the Sultan of Brunei to celebrate his 50th birthday on 13 July, 1996.

The worlds largest cake was presented at the 100th Birthday of the city of Fort Payne, Alabama. The cake weighed 128,238 pounds, 8 oz. and used 16,209 pounds of icing.

The first type of cake was sweetened bread dough topped with sugar.

The Germans are said to have first put small candles on birthday cakes for religious reasons.

Modern day balloons originated from animal bladders inflated with water by children.

In the Islamic world, green is consider the best color for wrapping gifts as it is said to bring luck.

It is common for the Germans to receive at least half day off work on their birthdays.

William Shakespeare is said to have died on his 52nd birthday on April 23rd 1616.