Siblings Day (sometimes called
National Siblings Day) is a holiday recognized annually in some parts of the
United States on April 10th, honoring the relationships of
siblings. Unlike
Mother's Day and
Father's Day, it is not federally recognized, though the Siblings Day Foundation is working to change this. Since 1998, the governors of 39
states have officially issued proclamations to recognize Siblings Day in their state. From its American beginnings the observation has become international, spreading as far as India and Australia.