International Day of Sign Languages: This day is observed to raise awareness about the importance of sign languages and promote their use as a means of communication among the deaf community worldwide.
International Day of the Deaf: This day is celebrated to raise awareness about the issues faced by the deaf community, including discrimination, lack of access to education and healthcare, and the importance of sign language.
International Day for the Preservation of the Ozone Layer: This day is celebrated to raise awareness about the depletion of the ozone layer, which protects life on Earth from harmful ultraviolet radiation. The day also marks the anniversary of the signing of the Montreal Protocol, which aims to phase out the production of ozone-depleting substances.
World Rhino Day: This day is observed to raise awareness about the plight of rhinoceros species worldwide, many of which are endangered or critically endangered due to habitat loss and poaching for their horns. The day also celebrates the conservation efforts being made to protect these magnificent creatures.
63 BC: Augustus, the first Roman Emperor, was born in Rome.
1642: Harvard College in Cambridge, Massachusetts, held its first commencement ceremony, with nine graduates receiving degrees.
1806: The expedition led by Meriwether Lewis and William Clark returned to St. Louis, Missouri, after exploring the western part of the United States.
1846: Astronomer Johann Gottfried Galle discovered the planet Neptune, using mathematical predictions made by French mathematician Urbain Le Verrier.
1909: The Phantom of the Opera, a novel by French author Gaston Leroux, was first published in Paris.
1952: The first United States hydrogen bomb was tested at Eniwetok Atoll in the Pacific.
1980: Bob Marley played his last concert in Pittsburgh, Pennsylvania, before his death from cancer in 1981.
2004: Hurricane Jeanne made landfall on the east coast of Florida, causing significant damage and claiming more than 3,000 lives in Haiti.
