thousands period
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Period (number) — In mathematics, a period is a number that can be expressed as an integral of an algebraic function over an algebraic domain. The concept has been promoted by Maxim Kontsevich and Don Zagier.In elementary mathematics each group of three digits in… … Wikipedia
Period — How comets are classified. A period is the length of time it takes a comet to travel once around the sun. Short period comets can complete one cycle in 3.3 years, while very long period comets can take thousands of years to complete one orbit … The writer's dictionary of science fiction, fantasy, horror and mythology
Witch trials in the Early Modern period — Punishments for witchcraft in 16th century Germany. Woodcut from Tengler s Laienspiegel, Mainz, 1508. The Witch trials in the Early Modern period were a period of witch hunts between the fifteenth and eighteenth centuries,[1] when across Early… … Wikipedia
Cambrian Period — Oldest time division of the Paleozoic Era. During the Cambrian, 543–490 million years ago, there were widespread seas and several scattered landmasses. The largest continent was Gondwana. The average climate was probably warmer than today, with… … Universalium
Permian Period — Interval of geologic time, 290–248 million years ago. The last of the six periods of the Paleozoic Era, it follows the Carboniferous Period. During the Permian, the continents joined to form a single supercontinent, Pangea. Hot, dry conditions… … Universalium
Jerusalem during the Crusader period — The Crusader period in the history of Jerusalem began with the conquest of the city by the Crusader army in 1099, during the First Crusade, as it is now known, Jerusalem became the capital of the kingdom for the crusading Christians, these events … Wikipedia
Tertiary Period — Interval of geologic time, 65–1. 8 million years ago. It constitutes the first of the two periods of the Cenozoic Era, the second being the Quaternary. The Tertiary has five subdivisions: (from oldest to youngest) the Paleocene, Eocene, Oligocene … Universalium
Khmer Rouge period (1975–1979) — The Khmer Rouge from 1975 until 1979 when Cambodia was ruled by the government of Pol Pot and his Khmer Rouge party the official name of the country was Democratic Kampuchea ( km. កម្ពុជាប្រជាធិបតេយ្យ, French: Kampuchea démocratique , Vietnamese … Wikipedia
Edo period — The nihongo|Edo period|江戸時代|Edo jidai, also referred to as the Tokugawa period (徳川時代 Tokugawa jidai ), is a division of Japanese history running from 1603 to 1868. The period marks the governance of the Edo or Tokugawa shogunate, which was… … Wikipedia
Ordovician Period — Interval of geologic time, 490–443 million years ago, the second oldest period of the Paleozoic Era. It follows the Cambrian and precedes the Silurian. During the Ordovician, many of the landmasses were aligned in the tropics. Life was dominated… … Universalium
Warring States Period — The Warring States Period (zh tsp|t=戰國時代|s=战国时代|p=Zhànguó Shídài), also known as the Era of Warring States, covers the period from some time in the 5th century BC to the unification of China by the Qin Dynasty in 221 BC. It is nominally… … Wikipedia
