A newly released chart posted on Daily Mail's website shows how American birthdays rate against each other.
A heat graph corresponds the number of births on any given day to light and dark squares. Using Harvard University data, the graph shows September 16th as the most common birthday in the U.S., while December 25th and February 29th are the least common.
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A large proportion of babies are born in September. September is nine months after the holiday season, confirming a long-held suspicion about conception trends.
The least common birthdays fall at the beginning of January, at the end of November, and around Christmas time.
