World Day for Laboratory Animals – This day raises awareness of the suffering of animals used in research and testing, and encourages the development of alternative methods.
International Day of Multilateralism and Diplomacy for Peace – This day promotes the values of multilateralism and diplomacy in settling international disputes and maintaining peace.
International Sculpture Day – This day celebrates the role of sculpture in the arts and encourages appreciation of the diversity of sculptural practices.
World Meningitis Day – This day raises awareness of meningitis and the importance of vaccinations, early diagnosis, and treatment to prevent the spread of the disease.
Fashion Revolution Day – This day commemorates the 2013 Rana Plaza factory disaster in Bangladesh and encourages a more sustainable and ethical fashion industry.
Armenian Genocide Remembrance Day – This day commemorates the Armenian Genocide, which began on April 24, 1915, and honors the memory of the victims.
National Pigs in a Blanket Day – This day celebrates the popular snack food consisting of sausages wrapped in dough and baked or fried.
1184 BC – The Greeks enter Troy using the Trojan Horse.
1479 – The Treaty of Alcáçovas is signed, which settles the dispute between Portugal and Castile regarding the newly discovered lands of the Atlantic Ocean.
1800 – The United States Congress establishes the Library of Congress.
1915 – The Armenian Genocide begins in the Ottoman Empire.
1953 – Winston Churchill is knighted by Queen Elizabeth II.
1990 – The Hubble Space Telescope is launched into orbit by Space Shuttle Discovery.
2013 – A building collapse in Savar, Bangladesh, kills 1,129 people and injures over 2,500 others in one of the deadliest industrial disasters in history.
