National Poetry Month was inaugurated by the Academy of American Poets in April 1996. Over the years, it has become the largest literary celebration in the world with schools, publishers, libraries, booksellers, and poets celebrating poetry’s vital place in our culture.https://poets.org/national-poetry-month
April is Sexual Assault Awareness Month. The goal of SAAM is for individuals and organizations to raise public awareness about sexual harassment, assault, and abuse and educate communities on how to prevent it https://www.nsvrc.org/about/national-sexual-violence-resource-center
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 including 1 billion people in more than 193 countries. The official theme for 2023 is Invest In Our Planet.