Don't give a clock or watch as a birthday gift in China. It's bad luck!
In America, the most common birth date is October 5 and the least common is May.
Days of the week
The day of the week in which the most babies are born is Tuesday while Sunday has the fewest births.
Birthday cards were sent in England over one hundred years ago.
First century Jewish law forbid the celebrations of birthdays.
Early, European birthday parties were held because people thought they were vulnerable to demons on their birthdays.
The first balloons are thought to originate from children's toys that were made out of animal intestines filled with water.
Close to 2 billion birthday cards are sent each year in the U.S. alone, accounting for nearly 58 percent of all cards sent.
Exactly 31,536,000 seconds have passed since your last birthday.
The sun has traveled 584,337,600 miles since your last birthday.
The world's largest birthday cake was created in 1989 it weighed 128,238 pounds, 8 oz. and used 16,209 pounds of icing.
The first birthday cake with candles happened in 18th century Greece.
Putting candles on a birthday cake originated from Greek goddess worship.
Anne Frank's world famous diary was given to her when she was thirteen years old.
William Shakespeare died on his 52nd birthday: 23 April 1616.
Noisemakers were used in Europe to scare away evil spirits and demons on someone's birthday.
Jesus' birthday is celebrated on December 25 to convert people from celebrating Saturnalia.
In Korea, the two most important birthdays are the 100th day and the 60th year.
The Sultan of Brunei hosted the world's most expensive Birthday Party to celebrate his 50th Birthday on 13 July, 1996. The cost was around $27.2 million.
Ancient Egyptian Pharaohs are recorded as having elaborate birthday parties.
The "Happy Birthday Song" is copyrighted.
Don't give a birthday gift to someone you don't know well, or it will be seen as a bribe.
Gifts are never opened in front of the person who gave the gift.
Give gifts to person in private.
May 22nd is the least common birth date besides February 29th.
In North Korea, People don't celebrate birthdays on July 8 and December 17. This is because July 8 is the death day of Kim Il-sung, and December 17 is the death day of Kim Jong-Il. Around 100,000 residents in North Korea celebrate fake birthdays on July 9 or December 18.