Portal:Geography
The Geography Portal
Geography (from Ancient Greek γεωγραφία geōgraphía; combining gê 'Earth' and gráphō 'write') is the study of the lands, features, inhabitants, and phenomena of Earth. Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities—not merely where objects are, but also how they have changed and come to be. While geography is specific to Earth, many concepts can be applied more broadly to other celestial bodies in the field of planetary science. Geography has been called "a bridge between natural science and social science disciplines."
Origins of many of the concepts in geography can be traced to Greek Eratosthenes of Cyrene, who may have coined the term "geographia" (c. 276 BC – c. 195/194 BC). The first recorded use of the word γεωγραφία was as the title of a book by Greek scholar Claudius Ptolemy (100 – 170 AD). This work created the so-called "Ptolemaic tradition" of geography, which included "Ptolemaic cartographic theory." However, the concepts of geography (such as cartography) date back to the earliest attempts to understand the world spatially, with the earliest example of an attempted world map dating to the 9th century BCE in ancient Babylon. The history of geography as a discipline spans cultures and millennia, being independently developed by multiple groups, and cross-pollinated by trade between these groups. The core concepts of geography consistent between all approaches are a focus on space, place, time, and scale.
Today, geography is an extremely broad discipline with multiple approaches and modalities. There have been multiple attempts to organize the discipline, including the four traditions of geography, and into branches. Techniques employed can generally be broken down into quantitative and qualitative approaches, with many studies taking mixed-methods approaches. Common techniques include cartography, remote sensing, interviews, and surveying. (Full article...)
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Ham Wall is an English wetland National Nature Reserve (NNR) 4 kilometres (2.5 mi) west of Glastonbury on the Somerset Levels. It is managed by the Royal Society for the Protection of Birds (RSPB). Since the last Ice Age, decomposing plants in the marshes of the Brue valley in Somerset have accumulated as deep layers of peat that were commercially exploited on a large scale in the twentieth century. Consumer demand eventually declined, and in 1994 the landowners, Fisons, gave their old workings to what is now Natural England, who passed the management of the 260 hectares (640 acres) Ham Wall section to the RSPB.
The Ham Wall reserve was constructed originally to provide reed bed habitat for the Eurasian bittern, which at the time was at a very low population level in the UK. The site is divided into several sections with independently controllable water levels, and machinery and cattle are used to maintain the quality of the reed beds. There are important breeding populations of wetland birds including the rare little bittern and great white egret, and the area hosts several other uncommon animals and plants. The RSPB works with other organisations as part of the Avalon Marshes Partnership to coordinate conservation issues across the Somerset Levels. (Full article...)
Dom Pedro Afonso (19 July 1848 – 10 January 1850) was the Prince Imperial and heir apparent to the throne of the Empire of Brazil. Born at the Palace of São Cristóvão in Rio de Janeiro, he was the second son and youngest child of Emperor Dom Pedro II and Dona Teresa Cristina of the Two Sicilies, and thus a member of the Brazilian branch of the House of Braganza. Pedro Afonso was seen as vital to the future viability of the monarchy, which had been put in jeopardy by the death of his older brother Dom Afonso almost three years earlier.
Pedro Afonso's death from fever at the age of one devastated the Emperor, and the imperial couple had no further children. Pedro Afonso's older sister Dona Isabel became heiress, but Pedro II was unconvinced that a woman could ever be accepted as monarch by the ruling elite. He excluded Isabel from matters of state and failed to provide training for her possible role as empress. With no surviving male children, the Emperor came to understand that the imperial line was destined to end with his own death. (Full article...)
The Battle of Trapani took place on 23 June 1266 off Trapani, Sicily, between the fleets of the Republic of Genoa and the Republic of Venice, as part of the War of Saint Sabas (1256–1270). During the war, the Venetians held the upper hand in naval confrontations, forcing the Genoese to resort to commerce raiding and avoiding fleet battles. In the 1266 campaign, the Genoese had an advantage in numbers, but this was not known to the Genoese commander, Lanfranco Borbonino. As a result, the Genoese tarried at Corsica until the end of May. The Venetian fleet under Jacopo Dondulo, was left to sail back and forth awaiting the appearance of the Genoese fleet in the waters around southern Italy and Sicily. Fearing that the other side had more ships, both sides reinforced their fleets with additional ships, but the Genoese retained a small numerical advantage.
The two fleets met near Trapani in Sicily on 22 June. After learning of the Venetian fleet's smaller size, the Genoese war council resolved to attack, but during the night Borbonino reversed the decision and instead ordered his ships to take up a defensive position, bound together with chains, near the shore. As the Venetian fleet attacked the next day, many of the Genoese crews, mostly hired foreigners, lost heart and abandoned their ships. The battle was a crushing Venetian victory, as they sank or captured the entire Genoese fleet. On their return to Genoa, Borbonino and most of his captains were tried and fined large sums for cowardice. Despite the loss, Genoa continued the war, in which neither side was able to gain a decisive advantage, until it was ended through French mediation in 1270. (Full article...)
Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's fourth largest island, the second-largest island country and the 46th largest country overall. Its capital and largest city is Antananarivo.
Following the prehistoric breakup of the supercontinent Gondwana, Madagascar split from Africa during the Early Jurassic period, around 180 million years ago, and separated from the Indian subcontinent approximately 90 million years ago. This isolation allowed native plants and animals to evolve in relative seclusion; as a result, Madagascar is a biodiversity hotspot and one of the world's 17 megadiverse countries, with over 90% of its wildlife being endemic. The island has a subtropical to tropical maritime climate. Madagascar was first permanently settled during or before the mid-first millennium AD by Austronesian peoples, presumably arriving on outrigger canoes from present-day Indonesia. These were joined around the ninth century AD by Bantu groups crossing the Mozambique Channel from East Africa. Other groups continued to settle on Madagascar over time, each one making lasting contributions to Malagasy cultural life. Consequently, there are 18 or more classified peoples of Madagascar, the most numerous being the Merina of the central highlands. (Full article...)
Upper Pine Bottom State Park is a 5-acre (2.0 ha) Pennsylvania state park in Lycoming County, Pennsylvania in the United States. The park is in Cummings Township on Pennsylvania Route 44 and is surrounded by the Tiadaghton State Forest. It is on Upper Pine Bottom Run, which gave the park its name and is a tributary of Pine Creek. Upper Pine Bottom State Park is in the Pine Creek Gorge, where the streams have cut through five major rock formations from the Devonian and Carboniferous periods.
The earliest recorded inhabitants of the area were the Susquehannocks, followed by the Iroquois, Lenape, and Shawnee. Upper Pine Bottom Run was the site of a furnace for pig iron in 1814, the first sawmill was built on it in 1815, and in 1825 an earlier bridle path across its headwaters became a turnpike. The lumber industry led to the clearcutting of the area in the 19th century. The state forest was started in 1898 and the park was formed from it by 1923 as a Class B public camp. The Civilian Conservation Corps had a camp on the run and improved the park in the 1930s, but it was not transferred to the Bureau of State Parks until 1962. Though it began as a public campsite and once had a picnic pavilion, as of 2017 it is for day use only and its only facilities are a few picnic tables and a parking area. (Full article...)
Nevado Ojos del Salado is a dormant complex volcano in the Andes on the Argentina–Chile border. It is the highest volcano on Earth and the highest peak in Chile. The upper reaches of Ojos del Salado consist of several overlapping lava domes, lava flows and volcanic craters, with sparse ice cover. The complex extends over an area of 70–160 square kilometres (27–62 sq mi) and its highest summit reaches an altitude of 6,893 metres (22,615 ft) above sea level. Numerous other volcanoes rise around Ojos del Salado.
Being close to the Arid Diagonal of South America, the mountain has extremely dry conditions, which prevent the formation of substantial glaciers and a permanent snow cover. Despite the arid climate, there is a permanent crater lake about 100 m (330 ft) in diameter at an elevation of 6,480 metres (21,260 ft)-6,500 metres (21,300 ft) within the summit crater and east of the main summit. This is the highest lake of any kind in the world. Owing to its altitude and the desiccated climate, the mountain lacks vegetation. (Full article...)
Mount Price is a small stratovolcano in the Garibaldi Ranges of the Pacific Ranges in southwestern British Columbia, Canada. It has an elevation of 2,049 metres (6,722 feet) and rises above the surrounding landscape on the western side of Garibaldi Lake in New Westminster Land District. The mountain contains a number of subfeatures, including Clinker Peak on its western flank, which was the source of two thick lava flows between 15,000 and 8,000 years ago that ponded against glacial ice. These lava flows are structurally unstable, having produced large landslides as recently as the 1850s. A large provincial park surrounds Mount Price and other volcanoes in its vicinity. It lies within an ecological region that surrounds much of the Pacific Ranges.
Mount Price is associated with a small group of volcanoes called the Garibaldi Lake volcanic field. This forms part of the larger Garibaldi Volcanic Belt, a north−south trending volcanic zone that represents a portion of the Canadian Cascade Arc. Mount Price began its formation 1.2 million years ago and continued intermittently until sometime in the last 15,000 years. Although the mountain is not known to have been volcanically active for thousands of years, it could erupt again, which would potentially endanger the nearby populace. If this were to happen, relief efforts could be organized by teams such as the Interagency Volcanic Event Notification Plan who are prepared to notify people threatened by volcanic eruptions in Canada. (Full article...)
Robert Marshall (January 2, 1901 – November 11, 1939) was an American forester, writer and wilderness activist who is best remembered as the person who spearheaded the 1935 founding of the Wilderness Society in the United States. Marshall developed a love for the outdoors as a young child. He was an avid hiker and climber who visited the Adirondack Mountains frequently during his youth, ultimately becoming one of the first Adirondack Forty-Sixers. He also traveled to the Brooks Range of the far northern Alaskan wilderness. He wrote numerous articles and books about his travels, including the bestselling 1933 book Arctic Village.
A scientist with a PhD in plant physiology, Marshall became independently wealthy after the death of his father in 1929. He had started his outdoor career in 1925 as forester with the U.S. Forest Service. He used his financial independence for expeditions to Alaska and other wilderness areas. Later he held two significant public appointed posts: chief of forestry in the Bureau of Indian Affairs, from 1933 to 1937, and head of recreation management in the Forest Service, from 1937 to 1939, both during the administration of President Franklin D. Roosevelt. During this period, he directed the promulgation of regulations to preserve large areas of roadless land that were under federal management. Many years after his death, some of those areas were permanently protected from development, exploitation, and mechanization with the passage of the Wilderness Act of 1964. (Full article...)
Ancient Egypt was a civilization of ancient Northeast Africa. It was concentrated along the lower reaches of the Nile River, situated within the contemporary territory of modern-day Egypt. Ancient Egyptian civilization followed prehistoric Egypt and coalesced around 3100 BC (according to conventional Egyptian chronology) with the political unification of Upper and Lower Egypt under pharaoh or king Menes (often identified with Narmer). The history of ancient Egypt unfolded as a series of stable kingdoms interspersed by periods of relative instability known as "Intermediate Periods". The various kingdoms fall into one of three categories: the Old Kingdom of the Early Bronze Age, the Middle Kingdom of the Middle Bronze Age, or the New Kingdom of the Late Bronze Age.
Ancient Egypt reached the pinnacle of its power during the New Kingdom, ruling much of Nubia and a sizable portion of the Levant. After this period, it entered an era of slow decline. During the course of its history, ancient Egypt was invaded or conquered by a number of foreign powers, including the Hyksos, the Nubians, the Assyrians, the Achaemenid Persians, and the Macedonians under Alexander the Great. The Greek Ptolemaic Kingdom, formed in the aftermath of Alexander's death, ruled until 30 BC, when, under Cleopatra, it fell to the Roman Empire and became a Roman province. Egypt remained under Roman control until 642 AD, when it was conquered by the Rashidun Caliphate. (Full article...)
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