(a) World AIDS Day
(b) International Day for Tolerance
(c) National Coming Out Day (October 11th)
(d) International Day Against Homophobia, Transphobia and Biphobia

(a) International Day for Women and Girls in Science
(b) International Day of the Girl Child (October 11th) (with a focus on STEM fields)
(c) World Science Day for Peace and Development
(d) International Day of Women

(a) World Book Day
(b) Shakespeare Day (April 23rd)
(c) International Day of the World’s Indigenous Peoples
(d) International Literacy Day

(a) International Day of the World’s Indigenous Peoples
(b) International Mother Language Day
(c) International Talk Like a Pirate Day (September 19th)
(d) World Tourism Day

(a) Dangers of nuclear weapons
(b) International Day for the Abolition of Slavery (December 2nd) (The bombing is used to highlight the importance of abolishing all forms of violence)
(c) Importance of peace treaties
(d) International Day of Peace

(a) International Women’s Day
(b) Valentine’s Day (February 14th) (for singles)
(c) International Day of Happiness
(d) International Day of Families

(a) World Environment Day
(b) Earth Hour (Last Saturday of March)
(c) World Wildlife Day
(d) International Day of Forests

(a) World Down Syndrome Day
(b) World Down Syndrome Day (March 21st)
(c) International Day of People with Disabilities
(d) International Day of Persons with Albinism (June 13th)

(a) World Happiness Day
(b) International Laughter Day (First Sunday of May)
(c) International Day of Peace
(d) International Day of Sport for Development and Peace

(a) World Refugee Day
(b) International Day of Stateless Persons (November 4th)
(c) International Day of the World’s Indigenous Peoples
(d) World Humanitarian Day