The International Day of Human Space Flight , which is also Cosmonautics Day in Russia and other countries, is the annual celebration, held on April 12, of the anniversary of the first human space flight by Yuri Gagarin.

Gender and sexual diversity (GSD), or simply sexual diversity, refers to all the diversities of sex characteristics, sexual orientations and gender identities, without the need to specify each of the identities, behaviors, or characteristics that form this plurality. In the Western world, generally simple classifications are used to describe sexual orientation (heterosexuals, homosexuals and bisexuals), gender identity (transgender and cisgender), and related minorities (intersex), gathered under the […]

World Creativity and Innovation day observes on April 21 across the world and the goal is to build capacity for everyone to be open to new ideas and to make new decisions that make the world a better place and make their place in the world better too, in ways that do not cause harm.

International Mother Earth Day is celebrated to remind each of us that the Earth and its ecosystems provide us with life and sustenance. It also recognizes a collective responsibility, as called for in the 1992 Rio Declaration, to promote harmony with nature and the Earth to achieve a just balance among the economic, social and […]

Earth Day is an annual event on April 22 to demonstrate support for environmental protection. First held on April 22, 1970, it now includes a wide range of events coordinated globally by EARTHDAY.ORG (formerly Earth Day Network) including 1 billion people in more than 193 countries.

World Book Day or World Book and Copyright Day (also known as International Day of the Book or World Book Days) is a yearly event on April 23rd, organized by the United Nations Educational, Scientific and Cultural Organization (UNESCO), to promote reading, publishing and copyright.

World Malaria Day  is an international observance commemorated every year on 25 April and recognizes global efforts to control malaria.

The World Day for Safety and Health at Work is an annual international campaign to promote safe, healthy and decent work. It is held on 28 April and has been observed by the International Labour Organization (ILO) since 2003.