While the rail infrastructure dates from colonial and early republican times, passenger service along the principal Havana to Santiago corridor is increasingly reliable and popular with tourists who can purchase tickets in Cuban convertible pesos.

While it has been known since Jane Goodall's 1960s discovery that modern chimpanzees use tools, research published in 2007 indicates that chimpanzee stone tool use dates to at least 4, 300 years ago.

While his accession is traditionally dated to 660 BC, no historically firm dates can be assigned to this early emperor's life or reign, nor to the reigns of his early successors.

While there is no universally agreed upon time frame, demographers, historians and commentators use beginning birth dates from the early 1960s to the early 1980s ; typically no later than 1982.

While the organization was founded under a different name in 1970 and was officially named Greenpeace in 1972, the organization itself dates its birth to the first protest of 1971.

While some Eastern Orthodox national churches have accepted the Gregorian calendar dates for feast days that occur on the same date every year, the dates of all movable feasts ( such as Easter ) are still calculated in the Eastern Orthodox churches by reference to the Julian calendar.

While its dates are disputed, the publication in 1543 of Nicolaus Copernicus's De revolutionibus orbium coelestium ( On the Revolutions of the Heavenly Spheres ) and Andreas Vesalius's De humani corporis fabrica ( On the Fabric of the Human body ) are often cited as marking the beginning of the scientific revolution.

While the object from which the genre is derived dates from the Renaissance, theater historians argue that slapstick comedy has been at least somewhat present in almost all comedic genres since the rejuvenation of theater in church liturgical dramas in the Middle Ages.

While evidence of settlement at present-day Wiesbaden dates back to the Neolithic era, historical records document continuous occupancy after the erection of a Roman fort in 6 AD which housed an auxiliary cavalry unit.

While the oldest known inscription in the Khmer language dates from 611 CE, inscriptions in Thai writing began to appear around 1292 CE.

While some people consider the inclusion of jelly to be a recent variation, the earliest known recipe to include jelly dates from 1747, and the poet Oliver Wendell Holmes wrote of trifles containing jelly in 1861.

While there is evidence for settlement of the area now occupied by the town that dates back to the Iron Age, Arbroath's history as a town begins in the High Middle Ages with the founding of Arbroath Abbey in 1178.

While the building looks like a brooding medieval fortress, this appearance actually only dates from about 1858.

While the archetype for a murder mystery dates back to " The Three Apples " in the One Thousand and One Nights, crime fiction began to be considered as a serious genre only around 1900.

While the Jalali calendar is more accurate than the Gregorian, it is based on actual solar transit, similar to Hindu calendars, and requires an ephemeris for calculating dates.

While the official governmental history of Pea Ridge dates to the establishment of a post office in 1850, the area actually has a history of human habitation stretching back centuries prior.

While sources seem to disagree on the exact date and even the year of the town's incorporation, the town's own official site provides a detailed account of the process and the dates.

While the congregation was established in that location in 1831, the current building dates from the early 1900s.

While the post office dates from 1908, it was the 1926 discovery of oil in the vicinity that brought in enough fortune-seekers to populate a town.

While the routes in Nevada will be public, in the other states the planned routes, dates and times of transport will be secret for security reasons.

While much work has been done at the popular tourist destination of Uxmal to consolidate and restore buildings, little in the way of serious archeological excavation and research has been done ; therefore, the city's dates of occupation are unknown and the estimated population ( about 15, 000 people ) is at present only a very rough guess subject to change upon better data.

While the media began a never-ending speculation about the reasons for their split and the pro and contra of a " creative pause ," the girls and their management arranged the cancellation of all dates of their scheduled 2004 Pure Acoustic Tour.

While a basic listing of names and dates is publicly available, extended profiles are accessible to former Members.

While the origin of state-owned automobiles may be obscured, subsequent developments concerning the assignment, use, and management of state automobiles can be related more clearly.

While it would be rash to assert positively that no existing gems were the work of Gnostics, there is no valid reason for attributing any or all of them to such an origin.

While the first application of the term " clipper " in a nautical sense is by no means certain, it seems to have had an American origin when applied to the Baltimore clippers of the late 18th century.

While it is clear that the Christmas tree originates in Renaissance and early modern Germany, there are a number of speculative theories as to its ultimate origin.

While there is no prohibition in the area of the didgeridoo's origin, such restrictions have been applied by other Indigenous communities.

While the origin of Easter eggs can be explained in the symbolic terms described above, a sacred tradition among followers of Eastern Christianity says that Mary Magdalene was bringing cooked eggs to share with the other women at the tomb of Jesus, and the eggs in her basket miraculously turned brilliant red when she saw the risen Christ. The egg represents the boulder of the tomb of Jesus.

While the article specifically prohibits discrimination based on " sex, race, colour, language, religion, political or other opinion, national or social origin, association with a national minority, property, birth or other status ", the last of these allows the court to extend to Article 14 protection to other grounds not specifically mentioned such as has been done regarding discrimination based on a person's sexual orientation.

While they were largely assimilated, their Gothic origin was still well-known: the chronicler Theophanes the Confessor calls them Gothograeci.

While Conservative Jews have varied views regarding the origin of the Torah and its authority today, and believe it can be continuously reinterpreted.

While one or two terms may apparently be of Semitic origin ( such as KU-RO, see below ), there is yet not enough evidence to secure a connection between the language of Linear A and Semitic idioms.

While Brazilian Americans are not included with Hispanics and Latinos in the government's census population reports, any Brazilian American can report as being Hispanic or Latino since Hispanic or Latino origin is, like race, a matter of self-identification.

While the nonrestorative methods can improve contrast by removing out-of-focus light from focal planes, only the restorative methods can actually reassign light to its proper place of origin.

While Jacobs found that statement to be compatible with Orthodox Judaism, the Chief Rabbi condemned his views as denial of the divine origin of the Torah.

While the origin of the city had remained unknown for centuries, the Pelasgi, the Greeks, the Etruscans, and the Ligurians had variously been proposed as founders of the city ( for example, a colony of the ancient city of Pisa, Greece ).

While Spock makes it clear that the events during the period of Surak are well documented (" The Savage Curtain "), he is completely uncertain in regard to the origin of the Romulans: " If the Romulans are an offshoot of my Vulcan blood -- and I think this likely -- then attack becomes even more imperative.

While these latter accounts are common among martial artists, and often serve as origin stories for various martial arts styles, they are viewed by scholars as fictional.

While the generations born before the 1940s tend to use the older terms of Arabic or Persian origin, the younger generations favor new expressions.

While the term Sabbat originated from Judaism and is of Hebrew origin, the festivals themselves have historical origins in Celtic and Germanic pre-Christian feasts, and the Wheel of the Year, as has developed in modern Paganism and Wicca, is really a combination of the two cultures ' solstice and equinox celebrations.

While millets are indigenous to many parts of the world, millets most likely had an evolutionary origin in tropical western Africa, as that is where the greatest number of both wild and cultivated forms exist.

While the origin of the open business plan model is in the free software and Libre services arena,

While the polka is Bohemian in origin, most dance music composers in Vienna ( the capital of the vast Habsburg Austro-Hungarian Empire, which was the cultural centre for music from all over the empire ) composed polkas and included the dance in their repertoire at some point of their career.

While most of the Tang army was made of fubing Chinese conscripts, the majority of the troops led by Turkic generals were of non-Chinese origin, campaigning largely in the western frontier where the presence of fubing troops was low.

While many have differed on the specific Scottish-Pictish origin of the Old Red Sandstone of which the artifact is comprised, the Irish geological origin has been precluded.

While we cannot prove that Heraclianus, Appollinaris, Placidianus, or Marcianus were of Danubian origin themselves, it is clear that none of them were members of the Severan aristocracy, and all of them appear to owe their prominence to their military roles.