Understanding the birthday paradox: https://betterexplained.com/articles/understanding-the-birthday-paradox/

Python script written by Sandra Escandor-O’Keefe , demonstrating birthday paradox (i.e, what’s the threshold that no two people have the same birthday - in other words, past what point will two people end up starting to have the same birthday?): https://github.com/sescandor/birthday_paradox/blob/master/birthday_paradox.py