April 22 Discovery Day (Brazil) Earth Day (International observance) and its related observance: International Mother Earth Day Holocaust Remembrance Day (Serbia) National Jelly Bean Day (United States) April 23 Castile and León Day (Castile and León, Spain) German Beer Day (Germany) Independence Day (Conch Republic, Key West, Florida) International Pixel-Stained Technopeasant Day Khongjom Day (Manipur, India) National Sovereignty and Children's Day (Turkey and Northern Cyprus) Navy Day (China) St George's Day (England) and its related observances: Canada Book Day (Canada) La Diada de Sant Jordi (Catalonia, Spain) World Book Day UN English Language Day (United Nations) April 24 Armenian Genocide Remembrance Day (Armenia) Concord Day (Niger) Children's Day (Zambia) Democracy Day (Nepal) Fashion Revolution Day Flag Day (Ireland) International Sculpture Day Kapyong Day (Australia) Labour Safety Day (Bangladesh) National Panchayati Raj Day (India) National Pigs in a Blanket Day (United States) Republic Day (The Gambia) St Mark's Eve (Western Christianity) World Day for Laboratory Animals April 25 Anniversary of the First Cabinet of Kurdish Government (Iraqi Kurdistan) Anzac Day (Australia, New Zealand) Arbor Day (Germany) DNA Day Feast of Saint Mark (Western Christianity) Flag Day (Faroe Islands) Flag Day (Eswatini) Freedom Day (Portugal) Liberation Day (Italy) Major Rogation (Western Christianity) Military Foundation Day (North Korea) National Zucchini Bread Day (United States) Parental Alienation Awareness Day Red Hat Society Day Sinai Liberation Day (Egypt) World Malaria Day April 26 Chernobyl disaster related observances: Memorial Day of Radiation Accidents and Catastrophes (Russia) Day of Remembrance of the Chernobyl tragedy (Belarus) Confederate Memorial Day (Florida, United States) Hug A Friend Day Hug an Australian Day Lesbian Visibility Day National Pretzel Day (United States) Old Permic Alphabet Day Union Day (Tanzania) World Intellectual Property Day April 27 Day of Russian Parliamentarism (Russia) Day of the Uprising Against the Occupying Forces (Slovenia) Flag Day (Moldova) Freedom Day (South Africa) UnFreedom Day Independence Day (Sierra Leone) Independence Day (Togo) National Day (Mayotte) National Day (Sierra Leone) National Prime Rib Day (United States) National Veterans' Day (Finland) April 28 Lawyers' Day (Orissa, India) Mujahideen Victory Day (Afghanistan) National Day (Sardinia, Italy) National Heroes Day (Barbados) Restoration of Sovereignty Day (Japan) Workers' Memorial Day and World Day for Safety and Health at Work (international) National Day of Mourning (Canada) April 29 Day of Remembrance for all Victims of Chemical Warfare (United Nations) International Dance Day (UNESCO) Princess Bedike's Birthday (Denmark) National Shrimp Scampi Day (United States) Shōwa Day,