What is it called when two siblings have the same birthday?

When people refer to Irish twins, it's important to recognize that although the siblings are close in age, they are not actually twins. In other words, they were not born during the same gestational period. Calling them Irish twins is just an informal way of classifying siblings that are born close together.
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What do you call two siblings born in the same year?

Irish twins is the term for siblings born in the same calendar year or within 12 months of each other. For the British mother, the second pregnancy was conceived just seven weeks after the birth of the first child, despite the fact that the mother was taking birth control.
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Can siblings have the same birthday?

However, the odds that siblings share the same birth date, as well as time, aren't as improbable as it may seem. Mathematicians quibble over the precise odds, but UC Berkeley's Michael Hutchings calculates the probability at a little less than one in 500,000 for a family with two children who aren't twins.
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What three siblings born on the same day and same year are called?

Triplets are the result of a multiple birth, where three babies develop and grow in the same womb and are born at the same time. Triplets are like twins but instead of having one other sibling they have two other brothers or sisters. Quadruplets are four children delivered at the same time by the same mother.
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How rare is it for siblings to be born on the same day?

The random odds against five single siblings sharing a birthdate are one in 17,797,577,730 - almost 4 times the world's population.
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Three area siblings all share the same birthday



What is a Irish twin?

The term “Irish twins” refers to one mother having two children who were born 12 months or less apart. It originated in the 1800s as a way to poke fun at Irish Catholic immigrant families who didn't have access to birth control.
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What is twin birthday?

"birthday twins" (born on the same day & same month) "birthdate twins" (born on the same day & same month & same year) "time twins" (born on the same day & same month & same year)
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What does Dutch twins mean?

Therefore, children with a spacing of less than 12 months became known as Irish twins (also known as “Catholic twins” or “Dutch twins”).
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Is the term Irish twins offensive?

Irish twins is a slang expression for siblings born less than a year apart from each other. While some people intend it affectionately, it does stereotype Irish culture, making it mildly offensive.
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What are Catholic twins?

Noun. Catholic twins pl (normally plural, singular Catholic twin) (slang) Siblings born within twelve months of each other.
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What it called when you have the same birthday as someone?

Apparently astrologers have a term for this, 'date-twins'. If the details are precisely the same then they call them astro-twins.
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Is there a family where everyone has the same birthday?

Mom, dad, son all share a birthday. Luke and Hillary Gardner never have a problem remembering each other's birthday. After all, the husband and wife were born the same day.
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What is the largest number of siblings who share the same birthday?

The most siblings born on the same day is 5. Catherine (1952), Carol (1953), Charles (1956), Claudia (1961) and Cecilia Cummins (1966) were all born on February 20th. The odds of this happening is about 17.7 billion to one.
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What are Scottish twins?

They are 'mirror-image twins' - a little-known phenomenon that means otherwise identical siblings are asymmetrical in their looks and how they move or interact.
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What do you call someone that shares the same birthday month?

However, it is usual in the English-speaking world to call people who share the same birthday as "birthday twins." Less frequently "Irish twins," especially in the sense of same day and month but one year apart.
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How do you make Irish twins?

Twins occur when a woman becomes pregnant with two children from one conception. Twins are carried in the womb together and delivered at the same time. Irish twins occur when a woman has a baby within 12 months of having another child.
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Can you get pregnant during your pregnancy?

A double pregnancy, or superfetation, is extremely rare — in fact, there aren't even stats on how often it happens — but it's scientifically possible. We're not saying you should worry about it happening to you, just that you can't say that it's impossible.
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What's the smallest age gap between siblings?

Nine to 10 months age gap is obviously the smallest gap you can have, and can be quite tough but rewarding at the same time. The children are so close in age they will learn a lot about the world together.
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What do you call siblings born 18 months apart?

Irish twins: According to various sources, Irish twins are siblings born within 12-18 months of each other.
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What is a Didi twin?

In a di/di pregnancy (more scientifically referred to as a dichorionic diamniotic pregnancy) the twins each have their own chorionic and amniotic sacs. Essentially, each of the babies is growing like they would as a singleton, but just a little more cramped, because they're sharing the same womb.
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Can you get pregnant by two different guys at once?

This is the first step in making any fraternal twins. The difference in this case is that each egg is fertilized by a different man's sperm. This can happen if the woman is with two different men at a time when she can become pregnant. The process goes by the awful name heteropaternal superfecundation.
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Can siblings be 7 months apart?

It's technically possible for two siblings to be as close as 9 or 10 months apart. After your pregnancy comes to an end, you'll start ovulating again before you have your first postpartum period.
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What's a half-birthday twin?

A half-birthday is a day approximately six months before or after the anniversary of a person's birth.
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What are golden birthdays?

What is a Golden Birthday? Your golden birthday is when the date of your birth coincides with your age. For example, if you were born on October 8, your golden birthday took place when you turned 8. If you were born on December 21, your golden birthday took place when you turned 21.
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How do you wish a twin happy birthday?

You were twice the blessing when you were born, and each of you deserves twice the blessings in your lives. Happy birthday to the twins who have won our hearts! Happy birthday to the most beautiful twin girls in the world. I am blessed to have you in our lives.
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