World Health Day is a global health awareness day celebrated every year on 7 April, under the sponsorship of the World Health Organization (WHO), as well as other related organizations.
World Think Day, formerly known as Think Day, is celebrated annually on February 22 by all Girl Scouts.
World Down Syndrome Day
World Down Syndrome Day is marked each year on March 21.
National Cancer Survivors Day is a secular holiday celebrated primarily on the first Sunday in June in the United States.