General Facts about Birthday
The first documented birthday invitation is recorded to be sent by Claudia Severa, who was the wife of a Roman Commander Aelius Brocchus around 100 AD.
If there are 57 people together in a room (or just anywhere else), there is a 99% probability that any two persons have a birthday on the same date.
More than fifteen million people share the same birthday as you!
The most common birthday is 5th October. Did you notice that 5th October comes exactly nine months after New Year’s Eve? It seems people are very much excited on that day!
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The most common and the least common birthdays are Tuesday and Sunday respectively.
Birthdays started to be officially noted in the 19th century. Birthday records before that were not very accurate and these records were not kept for the entire population.
If you are in England, you will receive birthday cards by the Queen for your 100th and 105th birthday and then a card every following year!
The normal beating rate of a human heart is 72 beats per minute. Counting by that rate, your beats about 42,075,900 times between two of your birthdays.
Counting non-stop for 24 hours every day will make you 31,000 years old by the time you count up to one trillion.
The invitations were written on wooden leaf fragments and are known as ‘Vindolanda Tablets’. They are still preserved by the British Museum.
The most expensive birth certificate in the world is named to Paul McCartney. The Certificate was put on auction in March 1997 and it went under the hammer for a whopping $854,146!
August is the month in which the maximum number of people celebrate their birthdays.
Your heart is a great pumping machine. It pumps around 280 liters of blood every hour around your body. If we do the calculations again, it tells us that the heart pumps around 2,688,000 liters of blood every year!
The most expensive birthday party in the world was hosted by the Sultan of Brunei. He celebrated his 50th birthday on 13 July, 1996 with a cost of around $27.2 million.
A ‘Golden Birthday’ is when your age and your birthday are the same. For example, you will celebrate your 18th birthday as your Golden Birthday if your birth date is 18th December.
Do you know that your birthday comes exactly 31,536,000 seconds after your last birthday? Whoa! Seems too long, doesn’t it?
The largest birthday cake in the world was made in 1989 to celebrate the 100th birthday of the city of Fort Payne, Alabama. Weighing over 128,000 pounds, the cake used over 16,000 pounds of icing.
If two teams are playing a football match with the referee in the ground, there is a 50:50 probability that two persons on the ground will have the same birthday. Known as the ‘Birthday Paradox’, this follows everywhere that two persons out of any 23 will have the same birthday.
The Happy Birthday Song is a copyrighted song. It still makes about 2 million dollars every year from licensing fees. The song was originally written as “Good Morning to All” which changed to “Good Morning to You” which eventually became popular when it changed to “Happy Birthday to You”. The song is copyrighted at least till 2030.
The most popular birthday in the world is the Christmas Day which is celebrated as Jesus’ birthday. However, there is no historical evidence of Jesus’ birth on that day. More so, it is highly improbable that Jesus could have born in winter. 25th December started to be celebrated as Christmas day when Christians assigned the day as Jesus’ birthday to stop people from celebrating Saturnalia.
Birthday parties or celebrations started because in ancient times, it was believed that evil spirits attack a person on his birthday. To protect the person, his friends and family members visited with gifts and good wishes to ward off the evil spirits. Noisemakers were also used in such parties because people believed that the noisemakers would scare off the evil spirits.