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Timeline Of Dendrochronology Timestamp Events
A timeline of dendrochronology timestamped events. Timelines Timeline from all sub-regions Cliff dwellings, etc, the Americas :*for the Americas, see also: Timeline of Chacoan history A Timeline of Chacoan history includes Chaco Culture National Historical Park, Aztec Ruins National Monument, Twin Angels Pueblo, Casamero Pueblo, New Mexico, Casamero Pueblo, Kin Nizhoni, Pierre's Site, and Halfway House, New Mexico, Halfway House ... References {{DEFAULTSORT:Timeline of Dendrochronology Timestamp Events Dendrology Dendrochronology Dendrochronology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendrochronology
Dendrochronology (or tree-ring dating) is the scientific method of dating tree rings (also called growth rings) to the exact year they were formed. As well as dating them, this can give data for dendroclimatology, the study of climate and atmospheric conditions during different periods in history from wood. Dendrochronology derives from Ancient Greek (), meaning "tree", (), meaning "time", and (), "the study of". Dendrochronology is useful for determining the precise age of samples, especially those that are too recent for radiocarbon dating, which always produces a range rather than an exact date. However, for a precise date of the death of the tree a full sample to the edge is needed, which most trimmed timber will not provide. It also gives data on the timing of events and rates of change in the environment (most prominently climate) and also in wood found in archaeology or works of art and architecture, such as old panel paintings. It is also used as a check in radiocar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Winter Of 536
The volcanic winter of 536 was the most severe and protracted episode of climatic cooling in the Northern Hemisphere in the last 2,000 years. The volcanic winter was caused by an eruption, with several possible locations proposed in various continents. Most contemporary accounts of the volcanic winter are from authors in Constantinople, the capital of the Eastern Roman Empire, although the impact of the cooler temperatures extended beyond Europe. Modern scholarship has determined that in early AD 536 (or possibly late 535), an eruption ejected massive amounts of sulfate aerosols into the atmosphere, which reduced the solar radiation reaching the Earth's surface and cooled the atmosphere for several years. In March 536, Constantinople began experiencing darkened skies and cooler temperatures. Summer temperatures in 536 fell by as much as 2.5 degrees Celsius (4.5 Fahrenheit degrees) below normal in Europe. The lingering impact of the volcanic winter of 536 was augmented in 539–540, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Novgorod Codex
The Novgorod Codex (russian: Новгородский кодекс) is the oldest book of the Rus’, unearthed on July 13, 2000 in Novgorod. It is a palimpsest consisting of three bound wooden tablets containing four pages filled with wax, on which its former owner wrote down dozens, probably hundreds of texts during two or three decades, each time wiping out the preceding text. According to the data obtained by stratigraphy (and dendrochronology), carbon dating and from the text itself (where the year 999 occurs several times), the wax codex was used in the first quarter of the 11th century and maybe even in the last years of the 10th century. It is therefore older than the Ostromir Gospels, the earliest precisely dated East Slavic book. Discovery and description Since 1932 the ancient Russian city of Novgorod has been continuously excavated by the Novgorod Archaeological Expedition started by Artemiy Artsikhovsky. Since the early 1970s the excavations focused on the Troit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viking Ring Fortress
A Viking ring fortress, or Trelleborg-type fortress, is a type of circular fort of a special design, built in Scandinavia during the Viking Age. Collectively, they may also be known as trelleborgs. These fortresses have a strictly circular shape, with roads and gates pointing in the four cardinal directions. They are sometimes partially encircled by advanced ramparts, though not always circular. There are a total of seven known Viking ring fortresses at present, located in Denmark and Scania, Sweden. Many of them have been dated to the reign of Harold Bluetooth of Denmark, c. 980. Their exact purpose is subject to debate. Etymology This specific type of fortification was named after the first discovered example: Trelleborg near Slagelse, excavated in the years 1936–1941. Traditionally, the name ''trelleborg'' has been translated and explained as ″a fortress built by slaves″, since the Old Norse word for slave was ''thrall'' (The modern word is '' træl'' in Danish and ''tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volga Trade Route
In the Middle Ages, the Volga trade route connected Northern Europe and Northwestern Russia with the Caspian Sea and the Sasanian Empire, via the Volga River. The Rus used this route to trade with Muslim countries on the southern shores of the Caspian Sea, sometimes penetrating as far as Baghdad. The powerful Volga Bulgars (cousins of today's Balkan Bulgarians) formed a seminomadic confederation and traded through the Volga river with Viking people of Rus' and Scandinavia (Swedes, Danes, Norwegians) and with the southern Byzantine Empire (Eastern Roman Empire) Furthermore, Volga Bulgaria, with its two cities Bulgar and Suvar east of what is today Moscow, traded with Russians and the fur-selling Ugrians. Chess was introduced to Old Russia via the Caspian-Volga trade routes from Persia and Arabic lands. The route functioned concurrently with the Dnieper trade route, better known as the trade route from the Varangians to the Greeks, and lost its importance in the 11th century. Es ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarskoye Gorodishche
Sarskoye Gorodishche or Sarsky fort (russian: Сарское городище, literally "Citadel on the Sara") was a medieval fortified settlement in present-day Yaroslavl Oblast, Russia. It was situated on the bank of the Sara River, a short distance from Lake Nero, to the south of modern Rostov, of which it seems to have been the early medieval predecessor. Exploration The site first attracted the attention of Russian archaeologists in the mid-19th century due to its imposing dimensions, which have no parallels in the region. Excavations begun by Count Aleksey Uvarov in 1854 revealed a number of superb Varangian objects comparable to the sites in Scandinavia, notably a Carolingian sword with the inscription "Lun fecit". Excavations have been undertaken intermittently since that period by many persons, including Nicholas Roerich in 1903. In his diary, Roerich complained that the site had been reduced drastically by road builders. After Soviet archaeologists resumed excavati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristol Channel
The Bristol Channel ( cy, Môr Hafren, literal translation: "Severn Sea") is a major inlet in the island of Great Britain, separating South Wales from Devon and Somerset in South West England. It extends from the lower estuary of the River Severn ( cy, Afon Hafren) to the North Atlantic Ocean. It takes its name from the English city of Bristol, and is over 30 miles (50 km) wide at its western limit. Long stretches of both sides of the coastline are designated as Heritage Coast. These include Exmoor, Bideford Bay, the Hartland Point peninsula, Lundy Island, Glamorgan, Gower Peninsula, Carmarthenshire, South Pembrokeshire and Caldey Island. Until Tudor times the Bristol Channel was known as the Severn Sea, and it is still known as this in both cy, Môr Hafren and kw, Mor Havren. Geography The International Hydrographic Organization now defines the western limit of the Bristol Channel as "a line joining Hartland Point in Devon () to St. Govan's Head in Pembrokeshire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridgwater Bay
Bridgwater Bay is on the Bristol Channel, north of Bridgwater in Somerset, England at the mouth of the River Parrett and the end of the River Parrett Trail. It stretches from Minehead at the southwestern end of the bay to Brean Down in the north. The area consists of large areas of mudflats, saltmarsh, sandflats and shingle ridges, some of which are vegetated. It has been designated as a Site of Special Scientific Interest (SSSI) covering an area of since 1989, and is designated as a wetland of international importance under the Ramsar Convention. The risks to wildlife are highlighted in the local Oil Spill Contingency Plan. Several rivers, including the Parrett, Brue and Washford, drain into the bay. Man-made drainage ditches from the Somerset Levels, including the River Huntspill, also run into the bay. The mud flats provide a habitat for a wide range of flora and fauna. These include some nationally rare plants, beetles and snails. It is particularly important for over-wint ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Burial
A ship burial or boat grave is a burial in which a ship or boat is used either as the tomb for the dead and the grave goods, or as a part of the grave goods itself. If the ship is very small, it is called a boat grave. This style of burial was practiced by various seafaring cultures in Asia and Europe. Notable ship burial practices include those by the Germanic peoples, particularly by Viking Age Norsemen, as well as the pre-colonial ship burials described in the Boxer Codex (c. 15th century) in the Philippines. Asia-Pacific East Asia China The extinct Bo people of China's Sichuan and Yunnan provinces are known for their hanging coffins. The ancestors of the Bo people were instrumental in helping the Western Zhou overthrow the ruling Yin at the end of the Shang dynasty. Apart from this, the Bo people differed from other ethnic minorities in China through their burial traditions. Instead of the more common burial on the ground, the coffins of the Bo people were found hanging ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tumulus
A tumulus (plural tumuli) is a mound of earth and stones raised over a grave or graves. Tumuli are also known as barrows, burial mounds or ''kurgans'', and may be found throughout much of the world. A cairn, which is a mound of stones built for various purposes, may also originally have been a tumulus. Tumuli are often categorised according to their external apparent shape. In this respect, a long barrow is a long tumulus, usually constructed on top of several burials, such as passage graves. A round barrow is a round tumulus, also commonly constructed on top of burials. The internal structure and architecture of both long and round barrows has a broad range; the categorization only refers to the external apparent shape. The method of may involve a dolmen, a cist, a mortuary enclosure, a mortuary house, or a chamber tomb. Examples of barrows include Duggleby Howe and Maeshowe. Etymology The word ''tumulus'' is Latin for 'mound' or 'small hill', which is derived from th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Staraya Ladoga
Staraya Ladoga (russian: Ста́рая Ла́дога, p=ˈstarəjə ˈladəɡə, lit=Old Ladoga), known as Ladoga until 1704, is a rural locality (a '' selo'') in Volkhovsky District of Leningrad Oblast, Russia, located on the Volkhov River near Lake Ladoga, north of the town of Volkhov, the administrative center of the district. It used to be a prosperous trading outpost in the 8th and 9th centuries. It was dominated by Varangians who became known as the Rus'. For that reason, it is sometimes called the first capital of Russia. History Origin Dendrochronology suggests that Ladoga was founded in 753. Until 950, it was one of the most important trading ports of Eastern Europe. Merchant vessels sailed from the Baltic Sea through Ladoga to Novgorod and then to Constantinople or the Caspian Sea. This route is known as the trade route from the Varangians to the Greeks. An alternative way led down the Volga River along the Volga trade route to the Khazar capital of Atil, and then ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
