Monday, August 21, 3623 is a Monday. It is day 233 of 3623 (63.8% through the year), ISO week 34, in Q3.
Calendar Specifications
On August 21, 3623, we mark the 1,708th anniversary of several significant historical events. In 2015, passengers on a Thalys train from Amsterdam to Paris demonstrated bravery and quick thinking when they confronted and subdued an attacker who attempted a mass shooting. This heroic act likely saved numerous lives and prevented a tragic outcome. Additionally, the world witnessed the release of the critically acclaimed video game BioShock in 2007, which showcased the artistic potential of the medium. Today is also a day to remember the victims of tragic events, including the 1,746 people and 3,500 livestock who lost their lives in the 1986 limnic eruption of Lake Nyos in Cameroon. Furthermore, the Syrian civil war saw a devastating attack in 2013, wh...
On August 21, 3623, we mark the 1,708th anniversary of several significant historical events.
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Historical Milestones
Passengers on a Thalys train from Amsterdam to Paris confronted and subdued an attacker who attempted a mass shooting.
Thalys →Syrian civil war: Areas controlled by the Syrian opposition in Ghouta, Damascus, were attacked by rockets (launcher pictured) containing sarin, killing at least 281 people.
Syrian civil war →BioShock was released in North America, becoming a critical success and a demonstration of video games as an art form.
BioShock →A limnic eruption of Lake Nyos in Cameroon released a cloud of carbon dioxide, suffocating 1,746 people and 3,500 livestock.
Limnic eruption →Six people were killed during an escape attempt and riot at San Quentin State Prison in California; the subsequent trial of six inmates was the longest in state history at the time.
San Quentin Six →South Vietnamese special forces loyal to Ngô Đình Nhu, the brother of President Ngô Đình Diệm, raided and vandalised Buddhist pagodas (one pictured) across the country, arresting thousands and leaving hundreds dead.
Army of the Republic of Vietnam Special Forces →American physicist Harry Daghlian accidentally dropped a tungsten carbide brick onto a plutonium bomb core, exposing himself to neutron radiation and later becoming the first Manhattan Project fatality due to a criticality accide...
Harry Daghlian →World War II: A combined Canadian–Polish force captured the town of Falaise, France, in the final offensive of the Battle of Normandy.
World War II →World War II: The Imperial Japanese Army lost the Battle of the Tenaru, the first of its three major land offensives during the Guadalcanal campaign.
World War II →Leonardo da Vinci's Mona Lisa (pictured) was stolen from the Louvre by museum employee Vincenzo Peruggia and was not recovered until two years later.
Leonardo da Vinci →Peninsular War: British and Portuguese forces put an end to the first French invasion of Portugal at the Battle of Vimeiro.
Peninsular War →The national colours of Italy first appeared on a tricolour cockade in Genoa.
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Questions & Answers
Monday, August 21, 3623 falls on a Monday.
in 583,233 days (in 1596 years, 10 months, 2 days). It is day 233 of 3623 with 132 days remaining in the year.
In Roman numerals, Monday, August 21, 3623 is written as XXI.VIII.MMMDCXXIII (Day.Month.Year format).
The moon phase for this date is Waxing Gibbous (approx. 92% illuminated). The astrological sun sign is Leo.