Hope everyone is doing well out there!
Some trivialities I was pursuing this morning:
600
from wikipedia.com
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Mathematical properties-
Six hundred is a composite number, an abundant number, a pronic number, a Harshad number and an apologetic number.
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In other fields-
In the United States, a credit score of 600 or below is considered a poor score, thus limiting available credit (or requiring the borrower to pay higher interest rates).
600 is also the advertised number of miles that NASCAR runs in the Coca-Cola 600, the longest race on any of the NASCAR circuits.
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Year 600 (DC) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar.
The denomination 600 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
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Events:
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By place-
World-
The population of the Earth rises to about 208 million people.
Europe-
Smallpox arrives in Europe for the first time.
King Ingvar of Sweden invades Estonia but is killed by the locals.
Asia-
The Persians begin to use windmills for irrigation.
Chaturanga is played in its current form in India.
America-
Loma Caldera in El Salvador erupts, burying the Maya village of Joya de Cerén.
The Hopewell tradition of North America ceases to be the dominant culture.
The city of Teotihuacán in what is now central Mexico begins to grow unstable, as they exhaust their resources until their inevitable collapse (possibly caused by the Toltec) circa 700.
Nazca culture ends in the Andes.
Moche culture ends in the Andes.
Middle Horizon period starts in the Andes.
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By topic-
Arts and sciences-
The moldboard plow is invented in eastern Europe.
The earliest references to chess are found in the Persian work Karnamak-i-Artakhshatr-i-Papakan, and the Indian works of Subandhu's Vasavadatta and Banabhatta's Harsha Charitha.
600-750 - Maguey Bloodletting Ritual, fragment of a fresco from Teotihuacan, Mexico, is made. Teotihuacan culture. It is now kept at The Cleveland Museum of Art.
Religion-
Pope Gregory I codifies what comes to be known as Gregorian chant.
Construction on the monastery of St. Catherine is begun on Mount Sinai.
Irish missionaries preach in Scotland and Germany.
Chinese-influenced sculptures of Buddha begin to be created in Japan.
Sumatra, Java, and the surrounding islands are converted to Buddhism.
Augustine of Canterbury converts Ethelbert of Kent to Christianity (approximate date).
Nubian rulers become Christian (approximate date).
Births-
Ali ibn Abi Talib, Shī‘ah Imām and the fourth caliph of Sunni Islam
Candrakirti, Indian Madhyamaka philosopher
Deaths-
Venantius Fortunatus, bishop of Poitiers, one of the last representatives of Classical Latin poetry
King Beop of Baekje, king of the Baekje Kingdom of Korea
Yang Jun
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