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Hace 3 días · Alzheimer's disease ( AD) is a neurodegenerative disease that usually starts slowly and progressively worsens, [2] and is the cause of 60–70% of cases of dementia. [2] [14] The most common early symptom is difficulty in remembering recent events. [1] As the disease advances, symptoms can include problems with language, disorientation ...
Hace 3 días · The history of Austria covers the history of Austria and its predecessor states. In the late Iron Age Austria was occupied by people of the Hallstatt Celtic culture (c. 800 BC), they first organized as a Celtic kingdom referred to by the Romans as Noricum, dating from c. 800 to 400 BC. At the end of the 1st century BC, the lands south of the ...
Hace 1 día · The Chinese also made use of the complex combinatorial diagram known as the magic square and magic circles, described in ancient times and perfected by Yang Hui (AD 1238–1298). [120] Even after European mathematics began to flourish during the Renaissance , European and Chinese mathematics were separate traditions, with significant Chinese mathematical output in decline from the 13th century ...
Hace 2 días · Isabella of Angoulême. Henry III (1 October 1207 – 16 November 1272), also known as Henry of Winchester, was King of England, Lord of Ireland, and Duke of Aquitaine from 1216 until his death in 1272. [1] The son of King John and Isabella of Angoulême, Henry assumed the throne when he was only nine in the middle of the First Barons' War.
Hace 4 días · The Brythonic Kingdom of Gwynedd was established in the 5th century, and it proved to be the most durable of these Brythonic states, surviving until the late 13th century. [13] Boundaries and names emerging from the 1st millennium AD onwards are still being used today to define towns and counties of the region. [41]
Hace 4 días · November. December. 1957 ( MCMLVII) was a common year starting on Tuesday of the Gregorian calendar, the 1957th year of the Common Era (CE) and Anno Domini (AD) designations, the 957th year of the 2nd millennium, the 57th year of the 20th century, and the 8th year of the 1950s decade. Millennium : 2nd millennium.
Hace 5 días · 7 [1] The volcano-caldera complex in the north of Lombok. In 1257, a catastrophic eruption occurred at Samalas, a volcano on the Indonesian island of Lombok. The event had a probable Volcanic Explosivity Index of 7, [a] making it one of the largest volcanic eruptions during the Holocene epoch. It left behind a large caldera that contains Lake ...
