Porto Velho is the capital of the Brazilian state of Rondônia, in the upper Amazon River basin. The population is about 334,661 people. In politics a capital (also called capital city or political capital — although the latter phrase has an alternative meaning based on an alternative meaning of capital) is the principal city or town associated with its government. ... A state is an organized political community occupying a definite territory, having an organized government, and possessing internal and external sovereignty. ... Rondônia is a state of Brazil, located in the northern-western part of the country. ... Length 6,296 km Elevation of the source 5,597 m Average discharge 219,000 m³/s Area watershed 6,915,000 km² Origin Nevado Mismi Mouth Atlantic Ocean Basin countries Brazil (62. ...

Located at the border of Rondônia and the state of Amazonas, the town is an important trade center of cassiterite, the mining of which represents the most important economic activity in the region, and a transportation and communication center. It is located on the eastern shore of the Madeira River, one of the main tributaries of the Amazon River. Border has several different, but related meanings: Generic borders A border can consist of a margin around the edge of something, such as a lawn, garden, photograph, or sheet of paper. ... Amazonas is the largest state of Brazil, located in the northern part of the country. ... Cassiterite is a mineral that has ornately faceted specimens with high luster. ... A region can be any area that has some unifying feature. ... The Madeira River is a major waterway in South America. ... A tributary (or affluent or confluent) is a contributory stream, a river that does not reach the sea, but joins another major river (a parent river), to which it contributes its waters, swelling its discharge. ... Length 6,296 km Elevation of the source 5,597 m Average discharge 219,000 m³/s Area watershed 6,915,000 km² Origin Nevado Mismi Mouth Atlantic Ocean Basin countries Brazil (62. ...

Officially founded on October 2, 1914, Porto Velho was started by pioneers around 1907, during the construction of the Madeira-Mamoré Railroad. After the railroad was completed, the local population was about one thousand inhabitants; its buildings were chiefly the railway's installations and the wooden houses of the Caribbean workers - hence the name of the town's largest district by then, "Barbadoes Town", nowadays called the "Alto do Bode". October 2nd is the 275th day (276th in leap years) of the year in the Gregorian Calendar, with 90 days remaining. ... 1914 is a common year starting on Thursday. ... 1907 was a common year starting on Tuesday (see link for calendar). ... This is the top-level page of WikiProject trains Rail tracks Rail transport refers to the land transport of passengers and goods along railways or railroads. ... The Caribbean or the West Indies is a group of islands in the Caribbean Sea. ...

During the first sixty years, the city's development was directly connected to the railway's activities. The town prospered during the rubber boom, but then when low-cost Malaysian rubber made rubber from the Amazon uncompetitive, the region's economy ground to a halt. Cities like Santo Antônio do Madeira, which had a tram line and a weekly newspaper by the time of Porto Velho's foundation, are nothing but ruins nowadays. Porto Velho's survival is associated with the better conditions of the area where it was built, its easy access by the river, its harbor: these were all considerations in the choice of Porto Velho as the capital of the newly-formed Federal Territory of Guaporé, in 1943. Development has meaning in several contexts: Biological development of embryos in the context of developmental biology Child development or post-natal human development (pediatrics, etc) Personal development (New Age self improvement) Economic development in economics and international relations Human development - to improve the health, education and range of choices of... Rubber is an elastic hydrocarbon polymer which occurs as a milky emulsion (known as latex) in the sap of a number of plants but can also be produced synthetically. ... emine ==Geography== The South American rainforest of Amazonia (60% located in Brazil), the largest in the world, was originally covered by more than 7,000,000 km² (2 million square miles) of dense tropical forest. ... A modern tram in the Töölö district of Helsinki, Finland a historic postcard showing electric-powered trolley streetcars in Richmond, Virginia, where Frank J. Sprague successfully demonstrated his new system on the hills in 1888 For modern innovations aimed at increasing the capacity and speed of tramway systems, see light... A territory is a defined area (including land and waters), usually considered to be a possession of an animal, person, organization, or institution. ... 1943 is a common year starting on Friday. ...

Only with the beginning of World War II there was another cycle of progress in the region. When the Allied forces lost control over the Malaysian rubber, Amazon's was needed due to the war effort. This produced what is know in Brazil as the "second rubber cycle". But when the war ended, the region's economy once again came to an halt. Mushroom cloud from the nuclear explosion over Nagasaki rising 18 km (over 11 miles) into the air. ... In general, allies are people or groups that have joined an alliance and are working together to achieve some common purpose. ... In military affairs, the war effort refers to the harnessing of economic and human resources towards support of a military force. ...

Porto Velho's modern history begins with the discovery of cassiterite around the city, and of gold on the Madeira River, by the end of the fifties. Also, the government's decision to allow large cattle farms in the territory began a trend of migration into the city. Almost one million people moved to Rondônia, and Porto Velho's population increased to three hundred thousand. This intense migration caused much trouble for the city. For example, the suburban boroughs are nothing but shanty towns, among many other problems. A history resource for kids -Chronology of Events in History, Mythology, and Folklore. ... General Name, Symbol, Number Gold, Au, 79 Chemical series transition metals Group, Period, Block 11 (IB), 6, d Density, Hardness 19300 kg/m3, 2. ...

The city now has its own university (Universidade Federal de Rondônia). The Universidade Federal de Rondônia is located in the state of Rondônia, in Brazil. ...

External link

• http://www.ronet.com.br/marrocos/pvh.html (in Portuguese)