World Population Day is an annual global observance held on July 11th, established by the United Nations to raise awareness about issues related to population and promote reproductive health and rights.
National Cancer Survivors Day is a secular holiday celebrated primarily on the first Sunday in June in the United States.
World Book Day, also known as World Book and Copyright Day or International Day of the Book, is an annual event organized by the United Nations Educational, Scientific and Cultural Organization (UNESCO) to promote reading, publishing, and copyright.
