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Hace 2 días · A circadian rhythm ( / sərˈkeɪdiən / ), or circadian cycle, is a natural oscillation that repeats roughly every 24 hours. Circadian rhythms can refer to any process that originates within an organism (i.e., endogenous) and responds to the environment (is entrained by the environment).
- Repeats roughly every 24 hours
- .mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}/sərˈkeɪdiən/
Hace 2 días · An extract from the Cyrus Cylinder (lines 15–21), giving the genealogy of Cyrus the Great and an account of his capture of Babylon in 539 BC. The cuneiform sign "EN", for "Lord" or "Master": the evolution from the pictograph of a throne circa 3000 BC, followed by simplification and rotation down to circa 600 BC.
- left-to-right
- (Proto-writing)Cuneiform
- Cuneiform
Hace 2 días · Constantine I [g] (27 February c. 272 – 22 May 337), also known as Constantine the Great, was a Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity.
Hace 2 días · Sestertius issued under Hadrian circa AD 134–138 Solidus issued under Constantine II, and on the reverse Victoria, one of the last deities to appear on Roman coins, gradually transforming into an angel under Christian rule. The early Empire was monetized to a near-universal extent, using money as a way to express prices and debts.
Hace 2 días · Mongol Empire. The Mongol Empire of the 13th and 14th centuries was the largest contiguous empire in history. [5] Originating in present-day Mongolia in East Asia, the Mongol Empire at its height stretched from the Sea of Japan to parts of Eastern Europe, extending northward into parts of the Arctic; [6] eastward and southward into parts of the ...
Hace 1 día · e. The history of China spans several millennia across a wide geographical area. Each region now considered part of the Chinese world has experienced periods of unity, fracture, prosperity, and strife. Chinese civilization first emerged in the Yellow River valley, which along with the Yangtze basin constitutes the geographic core of the Chinese ...
Hace 2 días · Etimologia. Miṣr /mɪsˤr/ (Maṣr /mɑsˤr/ in arabo egiziano), il nome arabo e ufficiale del moderno Egitto, è una parola di origine semitica.Dalla radice triconsonantica M-Ṣ-R l'accadico, anch'esso una lingua semitica, forma il sostantivo miṣru con significato di "frontiera, territorio"; maṣartu ha il significato di "guardia, sentinella, frontiera" e il verbo muṣuru "stabilire ...
