The most popular birthday is often cited as September 9th, with other late September dates like the 17th, 19th, and 21st also topping lists, likely due to conception occurring around the Christmas/New Year holidays. While September dominates the top spots, August often has the highest number of births overall, with many popular dates clustering in mid-to-late September across different countries like the U.S. and Australia.
Unsurprisingly, February 29 th is the least common birthday. Because Leap Day only rolls around every four years, there's only a 1/1,461 chance of being born on this day (versus 1/365 for any other given day).
10 Most Common Birthdays
The rarest birthdays in Australia are February 29 (Leap Day), followed by public holidays like Christmas Day (Dec 25), Boxing Day (Dec 26), New Year's Day (Jan 1), and Australia Day (Jan 26), with December being the least common month overall for births, as obstetricians often avoid scheduling non-emergency C-sections or inductions on holidays.
Your diamond birthday — also known as a platinum birthday — is when your age matches the last two digits of your birth year. For example, if you were born in 2010, your diamond birthday is when you turn 10 years old. If you were born in 1981, your diamond birthday is when you turn 81 years old.
Usually, they are delivered only a few minutes or hours apart. But they can have different birthdays. This most commonly happens when labor and delivery begins before midnight on one day and ends after the clock changes to the next day.
No, Australia is not 90% white; while a large majority identify with European ancestry (around 76-80% in recent years), a significant and growing portion identifies as Asian, African, Middle Eastern, or Indigenous, making it a highly multicultural nation with diverse ethnic backgrounds, not overwhelmingly white. Recent census data shows European ancestry (English, Irish, etc.) makes up a large chunk, but Asian ancestries are also substantial, with over 17% Asian population and around 3.8% identifying as Aboriginal or Torres Strait Islander, per the 2021 census data from Wikipedia.
Not all birthdays are created equal… in fact, for most countries in the north temperate zone, more people are born in summer (May – August) than in winter (October – January).
Australia's top three causes of death consistently include Dementia (including Alzheimer's disease), Ischaemic Heart Disease, and Chronic Lower Respiratory Diseases (like COPD), though their exact ranking can shift, with dementia often leading for women and heart disease for men, but the overall gap narrowing significantly, according to recent ABS data.
🤭 Today, September 9th, is the most popular day to be born––likely because 9 months prior falls in mid- December when holiday spirits are high. So, if your birthday happens to be today, you're not alone! And, of course, we wish you a very happy birthday 🥳
“The Center for Disease Control and Prevention tracks birth data nationwide, and July through October are the busiest birth months, with August typically having the highest number of births.
The BEST birthday date emerged as July 28th – due, in-part, to the likelihood of fantastic weather, its closeness to payday, as well as the “feel-good” summer factor!
The answer in probability is quite surprising: in a group of at least 23 randomly chosen people, the probability that some pair of them having the same birthday is more than 50%. For 57 or more people, the probability reaches more than 99%. And of course, the probability reaches 100% if there are 367 or more people.
On the other end of the spectrum, February 29 is one of the rarest birthdays due to its leap-year restriction, while holidays such as December 25, January 1, and July 4 also consistently see significantly fewer births.
Astrology suggests birth months influence luck, drawing opportunities and positive events. Individuals born in March, May, June, August, October, and December are highlighted for inherent optimism, cosmic backing, or karmic benefits.
Although insufficiently documented, it was reported that the heaviest baby born to a healthy mother was a boy weighing 10.2 kg (22 lb 8 oz) who was born to Sig. Carmelina Fedele (Italy) at Aversa, Italy in September 1955.
That matches up with Centers for Disease Control (CDC) data suggesting that August and September are among the most popular birth months. Researchers aren't sure exactly why this is the most fertile time, but they have some theories.
Ladies in Black is a 2018 Australian comedy-drama film directed by Bruce Beresford.
Once you've been in Australia for, well, an hour, you'll notice that nearly every word has an 'o' on the end of it. This is because for some weird reason Australians like to shorten every word and then add a vowel to the end of it… e.g. “bottle-o” (Bottle shop / off license) “servo” (garage / service station).
A daisy baby is another name for babies with TTTS. The Twin-to-Twin Transfusion Syndrome Foundation coined the term after its founder planted daisy seeds with her surviving twin son in their backyard. The daisy field is a symbol of hope that all babies affected by TTTS will survive.
Heteropaternal superfecundation is an extremely rare phenomenon that occurs when a second ova released during the same menstrual cycle is additionally fertilized by the sperm cells of a different man in separate sexual intercourse taking place within a short period of time from the first one 1-4.
In probability theory, the birthday problem asks for the probability that, in a set of n randomly chosen people, at least two will share the same birthday. The birthday paradox is the counterintuitive fact that only 23 people are needed for that probability to exceed 50%.