Instruct: Given a question, retrieve relevant passages that answer the question.
Query: When were the North American time zones established?
In order to compile his information, Abbe required a time-keeping system that was consistent among the stations. To accomplish this he divided the United States into four standard time zones. He published, in 1879, a paper titled "Report on Standard Time". In 1883, he convinced North American railroad companies to adopt his time-zone system. In 1884, Britain, which had already adopted its own standard time system for England, Scotland, and Wales, helped gather international consent for global time. In time, the American government, influenced in part by his 1879 paper, adopted the time-zone system.
The Phanerozoic eon began following the Precambrian. The first major unit of time it contained was the Cambrian period of the Paleozoic era. At the time, earth's continents were in a very different arrangement and were generally smaller than they are today. The southeastern part of the US was connected to South America and Africa and located in the polar latitudes of the southern hemisphere. The western states were located near the equator.
There are a considerable number of different accents within the regions of both the United States and Canada, originally deriving from the accents prevalent in different English, Scottish and Irish regions of the British Isles and corresponding to settlement patterns of these peoples in the colonies. These were developed and built upon as new waves of immigration, and migration across the North American continent, brought new accents and dialects to new areas, and as these ways of speaking merged and assimilated with the population. It is claimed that despite the centuries of linguistic changes there is still a resemblance between the English East Anglia accents which would have been used by early English settlers in New England (including the Pilgrims), and modern Northeastern United States accents. Similarly, the accents of Newfoundland have some similarities to the accents of Scotland and Ireland.
The history of the North-West Mounted Police in the Canadian north describes the activities of the North-West Mounted Police in the North-West Territories at the end of the 19th century and the start of the 20th. The mounted police had been established to control the prairies along the Canadian-United States border in 1873, but were then also deployed to control the Yukon region during the Klondike Gold Rush, and subsequently expanded their operations into the Hudson Bay area and the far north. The force was amalgamated in 1920 to form part of the new Royal Canadian Mounted Police, who continued their predecessors' work across the region.
The North American fur trade was the industry and activities related to the acquisition, trade, exchange, and sale of animal furs in North America. Aboriginal peoples in Canada and Native Americans in the United States of different regions traded among themselves in the pre–Columbian Era, but Europeans participated in the trade beginning from the time of their arrival in the New World and extended its reach to Europe. The French started trading in the 16th century, the English established trading posts on Hudson Bay in present-day Canada in the 17th century, and the Dutch had trade by the same time in New Netherland. The 19th-century North American fur trade, when the industry was at its peak of economic importance, involved the development of elaborate trade networks.
New France () was the area colonized by France in North America during a period beginning with the exploration of the Gulf of Saint Lawrence by Jacques Cartier in 1534 and ending with the cession of New France to Great Britain and Spain in 1763 under the Treaty of Paris (1763).
Software timekeeping systems vary widely in the granularity of their time units; some systems may use time units as large as a day, while others may use nanoseconds. For example, for an epoch date of midnight UTC (00:00) on January 1, 1900, and a time unit of a second, the time of the midnight (24:00) between January 1 and 2, 1900 is represented by the number 86400, the number of seconds in one day. When times prior to the epoch need to be represented, it is common to use the same system, but with negative numbers.
An inquiry during the winter of 1959–60, in which 180 national organisations were consulted, revealed a slight preference for a change to all-year GMT+1, but instead the length of summer time was extended as a trial. A further inquiry during 1966–1967 led the government of Harold Wilson to introduce the British Standard Time experiment, with Britain remaining on GMT+1 throughout the year. This took place between 27 October 1968 and 31 October 1971, when there was a reversion to the previous arrangement.
As a result, the first official settlement was not established within Canada until the founding of Quebec by Samuel de Champlain in 1608. The other four colonies within New France were Hudson's Bay to the north, Acadia and Newfoundland to the east, and Louisiana far to the south. Canada, the most developed colony of New France, was divided into three districts, Québec, Trois-Rivières, and Montréal, each with its own government. The governor of the District of Quebec was also the governor-general of all New France.
North of Salmon, the river is joined by the North Fork, before turning west into over of continuous canyons through the Salmon River and Clearwater Mountains – some of the most rugged and isolated terrain in the contiguous United States. Exhibiting upwards of of vertical relief, the Salmon River canyons are some of the deepest in the U.S., surpassing the Grand Canyon and second only to the Snake River's Hells Canyon on the Idaho–Oregon border. Here, the river is joined by its two largest tributaries, the Middle Fork and South Fork. Ten miles (16 km) downstream (west) of its confluence with the Middle Fork, the Salmon River becomes the dividing line for the two time zones in Idaho: Mountain time to the south, Pacific time to the north, bisecting the state at approximately 45½ degrees north latitude.
The Navajo meridian, established in 1869, is one of the two principal meridians for Arizona, the other being the Gila and Salt River meridian. Its initial point was stated as latitude 35° 45' north, longitude 108° 32' 45" west from Greenwich, but has been revised as The Navajo meridian and baseline were used to set townships and ranges in a special survey for the original Navajo Reservation, and was set at the eastern boundary of that reservation. The Arizona lands surveyed using the Navajo meridian and baseline were ranges six west to ten west and townships one north to fourteen north, and included Canyon de Chelly National Monument.
GMT's name comes from the first name initials of founders Gene Billingsley, Mike Crane, and Terry Shrum. However, Crane and Shrum soon split acrimoniously with GMT, and founded their own company, the Fresno Gaming Association.
The Thirteen Colonies, also known as the Thirteen British Colonies or Thirteen American Colonies, were a group of British colonies on the Atlantic coast of North America founded in the 17th and 18th centuries. They declared independence in 1776 and formed the United States of America. The Thirteen Colonies had very similar political, constitutional, and legal systems and were dominated by Protestant English-speakers. They were part of Britain's possessions in the New World, which also included colonies in Canada, the Caribbean, and the Floridas.
The idea for the clock came from New York real estate developer Seymour Durst, who wanted to highlight the rising national debt. In 1989, he sponsored the installation of the first clock, which was originally placed on Sixth Avenue between 42nd and 43rd Streets, one block away from Times Square. In 2004, the original clock was dismantled and replaced by a newer clock near 44th Street and Sixth Avenue. In 2008, as the U.S. national debt exceeded $10 trillion for the first time, it was reported that the value of the debt may have exceeded the number of digits in the clock. The lit dollar-sign in the clock's leftmost digit position was later changed to the "1" digit to represent the ten-trillionth place. In 2017, the clock was moved again to One Bryant Park, near its original location.
The Royal Proclamation of 1763 organized on paper much of the new territorial gains in three colonies in North America—East Florida, West Florida, and Quebec. The rest of the expanded British territory was left to Native Americans. The delineation of the Eastern Divide, following the Allegheny Ridge of the Appalachians, confirmed the limit to British settlement established at the 1758 Treaty of Easton, before Pontiac's War. Additionally, all European settlers in the territory (who were mostly French) were supposed to leave the territory or get official permission to stay. Many of the settlers moved to New Orleans and the French land on the west side of the Mississippi (particularly St. Louis), which in turn had been ceded secretly to Spain to become Louisiana (New Spain). However, many of the settlers remained and the British did not actively attempt to evict them.
The season officially began on June 15 and ended on November 15; these dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. This season was the first time that the United States Weather Bureau operated with radar technology to observe hurricanes away from land. Although the season began on June 15, tropical activity typically does not begin before August. The tropics remained tranquil through early August, and the U.S. Weather Bureau noted that the season had been "remarkably quiet". The inactive period ended on August 12, when the first tropical storm developed east of the Lesser Antilles. This storm received the name "Able" as part of the Joint Army/Navy Phonetic Alphabet. (The same alphabet was also used in the 1951 and 1952 seasons, before being replaced by female naming in 1953.)
The Jurassic Period extends from about 201.3 ± 0.2 to 145.0 Ma.
During the early Jurassic, the supercontinent Pangaea broke up into the northern supercontinent Laurasia and the southern supercontinent Gondwana; the Gulf of Mexico opened in the new rift between North America and what is now Mexico's Yucatan Peninsula. The Jurassic North Atlantic Ocean was relatively narrow, while the South Atlantic did not open until the following Cretaceous Period, when Gondwana itself rifted apart.
The Tethys Sea closed, and the Neotethys basin appeared. Climates were warm, with no evidence of glaciation. As in the Triassic, there was apparently no land near either pole, and no extensive ice caps existed. The Jurassic geological record is good in western Europe, where extensive marine sequences indicate a time when much of the continent was submerged under shallow tropical seas; famous locales include the Jurassic Coast World Heritage Site and the renowned late Jurassic "lagerstätten" of Holzmaden and Solnhofen.
In contrast, the North American Jurassic record is the poorest of the Mesozoic, with few outcrops at the surface. Though the epicontinental Sundance Sea left marine deposits in parts of the northern plains of the United States and Canada during the late Jurassic, most exposed sediments from this period are continental, such as the alluvial deposits of the Morrison Formation. The first of several massive batholiths were emplaced in the northern Cordillera beginning in the mid-Jurassic, marking the Nevadan orogeny. Important Jurassic exposures are also found in Russia, India, South America, Japan, Australasia and the United Kingdom.
This area of Ontario was first settled by English speakers in 1784, when thousands of American refugees arrived from the American colonies after the American Revolutionary War. They were later called United Empire Loyalists because of their continued allegiance to King George III. The struggle between Britain and the 13 American colonies occurred in the years 1776 to 1783, and seriously divided loyalties among people in some colonies such as New York and Vermont. In many areas traders and merchants, especially in the coastal cities or the northern border regions, had stronger business ties and allegiance to the Crown than did the frontiersmen of the interior. During the 6-year war, which ended with the capitulation of the British in 1782, many colonists who remained loyal to the crown were frequently subject to harsh reprisals and unfair dispossession of their property by their countrymen. Many Loyalists chose to flee north to the British colony of Quebec. Great Britain opened the western region of Canada (first known as Upper Canada and now Ontario), purchasing land from First Nations to allocate to the mostly English-speaking Loyalists in compensation for their losses, and helping them with some supplies as they founded new settlements. The first years were very harsh as they struggled on the frontier. Some exiles returned to the United States.
By 1947, tropical cyclones developing in the North Atlantic Ocean were named by the United States Army Air Forces in private communications between weather centres and aircraft using the Phonetic alphabet. This practice continued until September 1950, when the names started to be used publicly after three hurricanes (Baker, Dog, Easy) had occurred simultaneously and caused confusion within the media and the public. Over the next two years, the public use of the phonetic alphabet to name systems continued before at the 1953 Interdepartmental Hurricane Conference it was decided to start using a new list of female names during that season, as a second phonetic alphabet had been developed. During the active but mild 1953 Atlantic hurricane season, the names were readily used in the press with few objections recorded; as a result, the same names were reused during the next year with only one change: Gilda for Gail. Over the next six years a new list of names was developed ahead of each season, before in 1960 forecasters developed four alphabetical sets and repeated them every four years. These new sets followed the example of the typhoon names and excluded names beginning with the letters Q, U, X, Y, and Z, and keeping them to female names only.
The Panama Canal Zone () was an unincorporated territory of the United States from 1903 to 1979, centered on the Panama Canal and surrounded by the Republic of Panama. The zone consisted of the canal and an area generally extending on each side of the centerline, excluding Panama City and Colón, which otherwise would have been partly within the limits of the Zone. Its border spanned three of Panama's provinces. When reservoirs were created to assure a steady supply of water for the locks, those lakes were included within the Zone.
In 1963, Senator Hubert Humphrey and Representative John Blatnik, both from Minnesota, introduced bills to observe Leif Erikson Day nationwide. On September 2, 1964, Congress unanimously authorized and requested the President to create the observance through an annual proclamation. Lyndon B. Johnson did so that year, as has each president in the years since, often using the proclamation to praise the contributions of Americans of Nordic descent generally and the spirit of discovery.
Timekeeping on the American railroads in the mid-19th century was somewhat confused. Each railroad used its own standard time, usually based on the local time of its headquarters or most important terminus, and the railroad's train schedules were published using its own time. Some junctions served by several railroads had a clock for each railroad, each showing a different time.
Charles F. Dowd proposed a system of one-hour standard time zones for American railroads about 1863, although he published nothing on the matter at that time and did not consult railroad officials until 1869. In 1870 he proposed four ideal time zones (having north–south borders), the first centered on Washington, D.C., but by 1872 the first was centered on the meridian 75° W of Greenwich, with geographic borders (for example, sections of the Appalachian Mountains). Dowd's system was never accepted by American railroads. Instead, U.S. and Canadian railroads implemented a version proposed by William F. Allen, the editor of the "Traveler's Official Railway Guide". The borders of its time zones ran through railroad stations, often in major cities. For example, the border between its Eastern and Central time zones ran through Detroit, Buffalo, Pittsburgh, Atlanta, and Charleston. It was inaugurated on Sunday, , also called "The Day of Two Noons", when each railroad station clock was reset as standard-time noon was reached within each time zone. The zones were named Intercolonial, Eastern, Central, Mountain, and Pacific. Within a year 85% of all cities with populations over 10,000, about 200 cities, were using standard time. A notable exception was Detroit (which is about halfway between the meridians of eastern time and central time) which kept local time until 1900, then tried Central Standard Time, local mean time, and Eastern Standard Time before a May 1915 ordinance settled on EST and was ratified by popular vote in August 1916. The confusion of times came to an end when Standard zone time was formally adopted by the U.S. Congress in the Standard Time Act of March 19, 1918.
In 2009, PBS began using Internet servers instead of separate feeds for time delaying of its programming to the network's member stations. The servers imitate a delayed program feed, broadcasting the program at the correct airtime as if it were being broadcast via satellite. This was done as PBS had upgraded its main program feed to high definition (or to widescreen digital at the very least) in December 2008, but satellite capacity allowed for only Eastern and Pacific time zone feeds, prompting the removal of the Central and Mountain time zone feeds and a shared feed for Alaska and Pacific time zones in February 2009, which created complaints from PBS stations.
"We designed the building from the inside out, not the outside in,” said Loretta H. Cockrum, Foram’s founder, chairman and CEO. “We wanted the most efficient office building ever designed, with no wasted space or wasted energy. This is a building of the future more than a building of the present. A lot of love has gone into that building, and a lot of pride."
The Great Falls tectonic zone was first identified in 1985. Geologists originally believed the zone was part of the Wyoming craton, but now conclude that it is distinct from it. There is continuing controversy over whether the region is a shear zone or suture, and the role the zone played in the formation of the North American continent. At one time, both the Great Falls Tectonic Zone and the Vulcan structure were both considered sutures, but debate remains open on the point. At least one group of geologists has concluded the zone represents the closure of an ocean basin. The zone lacks gravity anomalies or electromagnetic signatures which would allow scientists to conclude that it was generated by subduction. There is significant evidence that the zone has been periodically remineralized since Precambrian times. Square Butte, Shaw Butte, Crown Butte and the other structures of the Adel Mountains Volcanic Field lie astride the tectonic zone near the city of Great Falls.