Since the early twentieth century, quantum theory has proved to be successful in describing accurately the physical reality of the mesoscopic and microscopic world, in multiple reproducible physics experiments.

Since the early years of the twentieth century, absolute dating methods, such as radiometric dating ( including potassium / argon, argon / argon, uranium series, and, for very recent fossils, radiocarbon dating ) have been used to verify the relative ages obtained by fossils and to provide absolute ages for many fossils.

Since around the start of the twentieth century, Haeckel's " biogenetic law " has been refuted on many fronts.

Since the late twentieth century, the Maya code has been almost completely deciphered, and the Mayan languages are among the most documented and studied in Mesoamerica.

Since the second half of the twentieth century the associations of race with the ideologies and theories that grew out of the work of 19th-century anthropologists and physiologists has led to the use of the word race itself becoming problematic.

Since the latter part of the twentieth century, it has been questioned whether a diet high in sugars, especially refined sugars, is bad for health.

Since the first class graduated, SAMS planners have supported every major military campaign, providing " the Army with many of its top campaign planners for the late twentieth and early twenty-first centuries ".

Since the early twentieth century when astronomer Edwin Hubble first hypothesized that redshift shows the universe is expanding, prevailing scientific opinion has been that the current state of the universe is the result of a process described by the Big Bang.

Since the early twentieth century, the philosophy done in universities ( especially in the English-speaking parts of the world ) has become much more analytic.

Since the late twentieth century, they have developed the successful North Star Mohican Resort and Casino to generate revenues for the tribe.

Since the late twentieth century, they have developed the North Star Mohican Resort and Casino on their reservation, which has successfully generated funds for tribal welfare and economic development.

Since this was the heart of artistic Paris at the turn of the twentieth century, there was much discussion at the cabaret about " the meaning of art ".

Since the US Federal Reserve was formed in 1913, however, the US dollar has fallen to barely a twentieth of its former value through the consistently inflationary policies of the bank.

Since the early twentieth century, the topsails and topgallants are often split into a lower and an upper sail to allow them to be more easily handled.

Since the late twentieth century, both the state and the United States have improved respect of indigenous rights and tribal sovereignty, but conflicts between the Tongva and the rapidly expanding population of Los Angeles have often required resolution in the courts.

Since the end of the twentieth century, there has been a resurgence of interest in his music.

Since the twentieth century, the island has been redeveloped for use as a tourist destination and resorts, although some private plantations remain.

Since the late twentieth century, the rank of general is usually the highest active rank of a military not at war.

Since the advent of modern drainage in the nineteenth and twentieth centuries, the Fens have been radically transformed, so that today arable farming has almost entirely replaced pastoral and the economy of the Fens is heavily invested in the production of crops such as grains, vegetables and some cash crops such as rapeseed or canola.

Since December 2010, UFO had been working on a twentieth studio album, which was supposed to be released in June 2011.

Since the late twentieth century, unrelated contemporary artists have contributed individual reworkings of tunes to tribute albums for well established artists who are considered to be influential and inspiring.

Since there was no linguistic contact with France from the late eighteenth century until the twentieth century, Acadian French retained features that died out during the French standardization efforts of the nineteenth century.

Since that time better measurements have placed the star further away but it was the still the second-closest known star system until the discovery of two dim red dwarf stars, Wolf 359 and Barnard's Star, in the early twentieth century using astrophotography.

Since the twentieth century a number of magical practitioners, including adherents of the Neopagan religion of Wicca, have begun to utilise the concept of familiars, due to their association with older forms of magic.

Since writing was practiced in the Aegean before the end of the century, we may hope that the details of tradition will now be occasionally useful.

Since Alexander's work in the field came at the turn of the century, his ideas influenced many originators in the field of mind-body improvement.

Since the 20th century, the appointment of Archbishops of Canterbury conventionally alternates between more moderate Anglo-Catholics and Evangelicals.

Since the early 20th century, the armed forces have pursued the goal of weapons self-sufficiency.

Since then, biochemistry has advanced, especially since the mid-20th century, with the development of new techniques such as chromatography, X-ray diffraction, dual polarisation interferometry, NMR spectroscopy, radioisotopic labeling, electron microscopy, and molecular dynamics simulations.

Since Pope Leo XIII issued the bull Apostolicae Curae in 1896, the Catholic Church has insisted that Anglican orders are invalid because of changes in the Anglican ordination rites of the 16th century and divergence in understanding of the theology of priesthood, episcopacy and Eucharist.

Since the mid-20th century, there has been considerable debate over how the earliest forms of life evolved and how to classify them, especially at the kingdom and domain levels and organisms that are or have been considered bacteria.

Since the early 20th century it has been commonly accepted that Old Irish Bel ( l ) taine is derived from a Common Celtic * belo-te ( p ) niâ, meaning " bright fire " ( where the element * belo-might be cognate with the English word bale in ' bale-fire ' meaning ' white ' or ' shining '; compare Anglo-Saxon bael, and Lithuanian / Latvian baltas / balts, found in the name of the Baltic ; in Slavic languages byelo or beloye also means ' white ', as in Беларусь ( White Russia or Belarus ) or Бе ́ лое мо ́ ре Sea ).

Since Daniel was a statesman during the Persian conquests, the Book of Daniel could have been written in a period when the Persians had their greatest influence on Aramaic, believed to be in the mid 6th century BC.

Since the second half of the 20th century most scholars have agreed with Martin Noth's thesis that the books of Deuteronomy, Joshua, Judges, Samuel and Kings form parts of a single work.

Since the late nineteenth century, the South used a colloquial term, the one-drop rule, to classify as black a person of any known African ancestry.

Since the Anglo-Boer war the term " Boervolk " was rarely used in the 20th century by the various regimes because of this attempt to assimilate the Boervolk with the Afrikaners.

Since the second half of the 20th century, computers have been programmed to play chess with increasing success, to the point where home computers can play chess at a very high level.

Since the 12th century, courts have had parallel and co-equal authority to make law -- " legislating from the bench " is a traditional and essential function of courts, which was carried over into the U. S. system as an essential component of the " judicial power " specified by Article III of the U. S. constitution.

Since the late nineteenth century, only two brief periods of violence have marred its democratic development.

Since the consolidation of newspaper comics by the first quarter of the 20th century, most cartoonists have used a group of assistants ( with usually one of them credited ).

Since the 20th century, another source of words has been Japanese using existing kanji ( Chinese characters used in Japanese ).

Since the 16th century, Portugal extensively adopted slavery to man their colonies, coming mainly from West and Central Africa.

Since direct observations of climate are not available before the 19th century, paleoclimates are inferred from proxy variables that include non-biotic evidence such as sediments found in lake beds and ice cores, and biotic evidence such as tree rings and coral.

Since the later 20th century, use of CE and BCE has been popularized in academic and scientific publications, and more generally by publishers emphasizing secularism or sensitivity to non-Christians.

Since the discovery of his " Letter to the Alexandrians " in the last century, much work has been done to rehabilitate Claudius and determine where the truth lies.

Since at least the 3rd century BC, there was influence of northern nomadic peoples and Yemaek peoples on Korean Warfare.

Since the early 21st century within the global functional food industry, raw cranberries have been marketed as a " superfruit " due to their nutrient content and antioxidant qualities.

Since the 19th century, US foreign policy also has been characterized by a shift from the realist school to the idealistic or Wilsonian school of international relations.

Since the Christianization of Ethiopia in the 4th century, the Church of Ethiopia has come under the dominion of the Church of Alexandria.