This page contains a calendar of Birthdays.
It enables you to look at any day of the year (e.g. Grannie's birthday) and find who else shares birthdays on that day, or adjacent days.
People with approximated birthdays (such as those whose birth is registered in a specific quarter) appear either at the end or beginning of the month.
Birthdays
Entries within a single date are sorted by year of birth, not by name