World Consumer Rights Day: Observed annually on March 15, this day is dedicated to promoting basic rights of consumers and raising awareness about consumer protection and safety.
International Day of Speech and Language Therapists: This day is celebrated to acknowledge the important work of speech and language therapists, and to promote awareness about the profession and its impact on individuals with communication disorders.
World Contact Day: This day is celebrated to encourage individuals to make contact with extraterrestrial beings, and to promote awareness about the possibility of alien life.
World Sleep Day: This day is celebrated to promote awareness about the importance of healthy sleep habits and the impact of sleep disorders on overall health and well-being.
International Day Against Police Brutality: Observed on March 15 each year, this day is aimed at raising awareness about police brutality and to remember victims of police violence.
44 BC: Julius Caesar, the Roman dictator, is assassinated by a group of senators in Rome.
1493: Christopher Columbus returns to Spain after his first voyage to the Americas.
1781: The Battle of Guilford Courthouse is fought during the American Revolutionary War, resulting in a British victory but heavy casualties on both sides.
1820: Maine becomes the 23rd state of the United States.
1917: Tsar Nicholas II abdicates the Russian throne, effectively ending the Romanov dynasty and leading to the establishment of the Soviet Union.
1965: The first successful spacewalk is performed by Soviet cosmonaut Alexei Leonov.
2011: A 9.0 magnitude earthquake strikes off the coast of Japan, triggering a tsunami that causes widespread destruction and a nuclear disaster at the Fukushima Daiichi nuclear power plant.
