For 62 hours this weekend, boys ruled the maternity ward at the University of Minnesota Medical Center.
Doctors there delivered 19 baby boys in a row.
The unbroken chain of male births is exceptionally rare. The odds are less than one in 524,000.
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All in a row: These are just four of the 19 infant boys born at a single hospital ward in Minnesota this weekend
'Sometimes, it seems like it comes in waves, but never that many in a row,' Dr Samantha Hoffman told WCCO-TV.
She added: 'I haven't seen any streaks like this before.'
She delivered baby boy number 18, which was when hospital staff realized something special was happening.
It began on Friday at 5pm with the first male birth and continued all weekend.
The remarkable streak ended about 7.15am on Monday when a baby girl, Laden Guled was born.
Megan Dischinger gave birth to number 14 in the streak, little Elliot.
Amazed: Staff of the University of Minnesota Medical Center say they have never seen such a long unbroken string of male births
'I called my mom right away,' Elliot's father Curt Dischinger told the news station.
Megan added: 'It's always fun to be part of something that's out of the ordinary.'
Combined, the baby boys - bundled up in blue blankets - weigh 115 pounds and stretch, head to toe, 363 inches.
As luck has it, the father of Laden, the girl who broke the string, is the CEO of a diaper company.
When Muhammed Guled discovered the rare feat that he inadvertently ended, he offered each of the families free diapers for a year.
Read more: http://www.dailymail.co.uk/news/article-2239579/Hospital-delivers-19-baby-boys-row-62-hour-span.html#ixzz2DY2HkYlr
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