September 21

Independence Day
Armenia : September 21 1991
Belize : September 21 1981
Malta : September 21 1964

September 21 : International Day of Peace
The International Day of Peace was established in 1981 by resolution 36/67 of the United Nations General Assembly to coincide with its opening session, which was held annually on the third Tuesday of September. The first Peace Day was observed in September 1982. In 2001, the General Assembly by unanimous vote adopted resolution 55/282, which established 21 September as an annual day of non-violence and cease-fire. The UN invites all nations and people to honour a cessation of hostilities during the Day, and to otherwise commemorate the Day through education and public awareness on issues related to peace.

September 21 : World Alzheimer’s Day
World Alzheimer's Day, September 21st of each year, is a day on which Alzheimer's organizations around the world concentrate their efforts on raising awareness about Alzheimer's and dementia. Alzheimer's disease is the most common form of dementia, a group of disorders that impairs mental functioning.

Every 68 seconds, someone develops Alzheimer's disease. At current rates, experts believe the number of Americans living with Alzheimer’s will quadruple to as many as 16 million by the year 2050.

Alzheimer's disease is often called a family disease, because the chronic stress of watching a loved one slowly decline affects everyone. 5.4 million Americans are living with Alzheimer's. Alzheimer's disease is the sixth-leading cause of death in the United States and the only cause of death among the top 10 in the United States that cannot be prevented, cured or even slowed. With the increases in life spans and baby boomers coming of age, support for Alzheimer’s research is more critical to our families than ever.

Events

455 – Emperor Avitus enters Rome with a Gallic army and consolidates his power.
1217 – Livonian Crusade: The Estonian tribal leader Lembitu and Livonian leader Kaupo are killed in Battle of St. Matthew's Day.
1338 – Hundred Years' War : The Battle of Arnemuiden was the first naval battle in history involving artillery.
1435 – An agreement between Charles VII of France and Philip the Good ends the partnership between the English and Burgundy in Hundred Years' War.
1745 – Battle of Prestonpans: A Hanoverian army under the command of Sir John Cope is defeated, in ten minutes, by the Jacobite forces of Prince Charles Edward Stuart
1776 – Part of New York City is burned shortly after being occupied by British forces.
1780 – American Revolutionary War: Benedict Arnold gives the British the plans to West Point.
1792 – The National Convention declares France a republic and abolishes the monarchy.
1823 – Joseph Smith is reportedly visited by the angel Moroni, who told him the location of gold plates, which Smith obtained four years later and partially translated into The Book of Mormon.
1860 – In the Second Opium War, an Anglo-French force defeats Chinese troops at the Battle of Palikao.
1896 – British force under Horatio Kitchener takes Dongola in the Sudan.
1897 – The "Yes, Virginia, there is a Santa Claus" editorial is published in the New York Sun.
1898 – Empress Dowager Cixi seizes power and ends the Hundred Days' Reform in China.
1921 – A storage silo in Oppau, Germany, explodes, killing 500-600 people.
1933 – Salvador Lutteroth ran the first ever EMLL (now CMLL) show in Mexico, marking the birth of Lucha Libre
1934 – A large typhoon hits western Honshū, Japan, killing 3,036 people.
1937 – J. R. R. Tolkien's The Hobbit is published.
1938 – The Great Hurricane of 1938 makes landfall on Long Island in New York. The death toll is estimated at 500-700 people.
1939 – Romanian Prime Minister Armand Calinescu is assassinated by ultranationalist members of the Iron Guard.
1942 – On the Jewish holiday of Yom Kippur, Nazis send over 1,000 Jews of Pidhaytsi (west Ukraine) to Belzec extermination camp.
1942 – In Poland, at the end of Yom Kippur, Germans order Jews to permanently evacuate Konstantynów and move to the Ghetto in Biała Podlaska, established to assemble Jews from seven nearby towns, including Janów Podlaski, Rossosz and Terespol.
1942 – In Dunaivtsi, Ukraine, Nazis murder 2,588 Jews.
1942 – The B-29 Superfortress makes its maiden flight.
1953 – LT No Kum-Sok a North Korean pilot defected to South Korea and is associated with Operation Moolah.
1961 – Maiden flight of the CH-47 Chinook transportation helicopter.
1964 – Malta becomes independent from the United Kingdom.
1964 – The North American XB-70 Valkyrie, the world's first Mach 3 bomber, makes its maiden flight from Palmdale, California.
1965 – Gambia, Maldives and Singapore are admitted as members of the United Nations.
1971 – Bahrain, Bhutan and Qatar join the United Nations.
1972 – Philippine President Ferdinand Marcos signs Proclamation № 1081, placing the entire country under martial law.
1976 – Orlando Letelier is assassinated in Washington, D.C. He is a member of the Chilean socialist government of Salvador Allende, overthrown in 1973 by Augusto Pinochet.
1976 – Seychelles joins the United Nations.
1981 – Belize is granted full independence from the United Kingdom.
1981 – Sandra Day O'Connor is unanimously approved by the U.S. Senate as the first female Supreme Court justice.
1984 – Brunei joins the United Nations.
1991 – Armenia is granted independence from Soviet Union.
1993 – Russian President Boris Yeltsin suspends parliament and scraps the then-functioning constitution, thus triggering the Russian constitutional crisis of 1993.
1999 – Chi-Chi earthquake occurs in central Taiwan, leaving about 2,400 people dead.
2001 – Deep Space 1 flies within 2,200 km of Comet Borrelly.
2001 – America: A Tribute to Heroes is broadcast by over 35 network and cable channels, raising over $200 million for the September 11 attack victims.
2003 – Galileo mission is terminated by sending the probe into Jupiter's atmosphere, where it is crushed by the pressure at the lower altitudes.

Holidays and observances

Arbor Day (Brazil)
Christian Feast Day:
Matthew the Evangelist (Western Church)
Nativity of the Theotokos (Orthodox Church)
September 21 (Eastern Orthodox liturgics)
Founder's Day (Ghana)
Independence Day, celebrates the independence of Armenia from the Soviet Union in 1991.
Independence Day, celebrates the independence of Belize from the United Kingdom in 1981.
Independence Day, celebrates the independence of Malta from the United Kingdom in 1964.
International Day of Peace (International)
Student's Day, also Spring Day (Argentina) and Bolivia
The first day of Mabon (Neopaganism)

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