Wednesday, October 31, 2007

twinsies times two

To have twins twice, none the less on the same day of the year is another fantastic statistic to be a part of. This has only been recorded twice in all of history, both instances happening fairly recently.

Laura Shelley gave birth to twins Melissa and Mark on March 25th, 1990. Then, in 2003, another set of twins Kayla and Jonathon were born, ON MARCH 25TH! That's two sets of twins on the same day of the year.

Caroline Cargado became the second case, with her twins Keilani and Kahleah on May 30th, 1996, then Mikayla and Malia in 2003.

What are the odds? I couldn't find any information about whether the women and their lovers were on fertility drugs, so I'm assuming the phenomenon of twinning occurred naturally, which happens about 15% of the time. Then, they could have had the twins on any of the 365 days of the year. So the chances are 15% of 1 in 365, which is a .041% chance; basically against almost all odds.