However, sometimes in the first half of the 20th century hardcopy artillery fire plans and map traces were distributed.

However, other sources suggest that the only time the entire lake froze over in the 20th century was in 1912.

However, the Yangban families carried on traditional education and formal mannerisms into the 20th century.

However when combined with land mines, snipers, barbed wire, and air cover, crossfire became a difficult tactic to counter in the early 20th century.

However, there were plans at the beginning of the 20th century to establish Neutral Moresnet as the world's first Esperanto state.

However, developments in genetic, genomic, and reproductive technologies at the end of the 20th century have raised many new questions and concerns about the meaning of eugenics and its ethical and moral status in the modern era, effectively creating a resurgence of interest in eugenics.

However, the claims of such cultural universalism have been criticized by various 19th and 20th century social thinkers, including Marx, Nietzsche, Foucault, Derrida, Althusser and Deleuze.

However, Fujiwara princes remained close advisors, regents and ministers to the emperors for centuries, even until the 20th century ( Prince Konoe and Morihiro Hosokawa ).

However, in the late 20th century, the city grew around the ruins, and, in some cases, over some of the outlying ruins before they were protected.

However both Anarchism on the left and fascism on the right grew rapidly in Spain in the early 20th century.

However, Bremmer advised her not to buy A Sunday Afternoon on the Island of La Grande Jatte by Seurat, which turned out to be an important icon of 20th century art.

However, Stevenson and Wassersug observe that for sustained activity, a work rate of about 1 hp per horse is consistent with agricultural advice from both 19th and 20th century sources.

However, by the 20th century, many pony breeds had Arabian and other blood added to make a more refined pony suitable for riding.

However the term Irish Republican Army in its modern sense was first used in the second decade of the 20th century for the rebel forces of the Irish Volunteers and the Irish Citizen Army during the Easter Rising.

However, he believed that ' a painter must be part of the land and of the life he paints ', and his own artistic development, as a Modernist and Expressionist, helped articulate a modern Dublin of the 20th century, partly by depicting specifically Irish subjects, but also by doing so in the light of universal themes such as the loneliness of the individual, and the universality of the plight of man.

However, during the late 20th and early 21st centuries, the strip received more recognition.

However, empirical proof and the universal acceptance of the existence of atoms didn ’ t occur until the early 20th century.

However, manpower was still needed in large amounts, and waterfronts were the hotbeds of the industrial actions of the early 20th century.

However, the meaning of the term has changed over time, and from the last half of the 20th century onward it has been used legitimately to refer to extremely dense phases of matter resembling the neutron-degenerate matter theorized to exist in the cores of neutron stars.

However, most of today's Nichren schools did not form until the late 19th and early 20th century as, also legal, religious bodies.

Propaganda can be defined as the ability " to produce and spread fertile messages that, once sown, will germinate in large human cultures .” However, in the 20th century, a “ new ” propaganda emerged, which revolved around political organizations and their need to communicate messages that would “ sway relevant groups of people in order to accommodate their agendas ”.

However, in the 20th century, water-based paints, including watercolors and acrylic paints, became very popular with the development of acrylic and other latex paints.

However, the scheme with four ( or three if Euryapsida is sunk into Diapsida ) subclasses remained more or less universal for non-specialist work throughout the 20th century, and has only been challenged with the rising popularity of phylogenetic nomenclature.

However, the concept of a supply chain in management was of great importance long before, in the early 20th century, especially with the creation of the assembly line.

However, a dozen Ugaritic tablets from the fourteenth century BC preserve the alphabet in two sequences.

However, the various preconditions for the development at Ford stretched far back into the 19th century, from the gradual realization of the dream of interchangeability, to the concept of reinventing workflow and job descriptions using analytical methods ( the most famous example being scientific management ).

Australian rules football, officially known as Australian football, also called football, footy or Aussie rules However, late in the century the code began to decline in New South Wales and Queensland largely due to competition with other more popular football codes, as well as interstate rivalries and the lack of strong local governing bodies.

However neither the Romans nor the Goths put up much resistance to the Arab conquest of Medina Laqant in the 8th century.

However, in the 17th and 18th centuries Bern encouraged industrial development in Unteraargau and by the late 18th century it was the most industrialized region in the city-state.

However, other scholars have argued that though 80 % of al-Andalus converted to Islam, it did not truly occur until near the 10th century.

However it is now thought this was probably a deliberate change in composition and overall the use of brass increases over this period making up around 40 % of all copper alloys used in the Roman world by the 4th century AD.

However the cementation process was not abandoned and as late as the early 19th century there are descriptions of solid state cementation in a domed furnace at around 900 – 950 ° C and lasting up to 10 hours.

However, for at least a century, some scholars have maintained that the description of Grendel ’ s lake in Beowulf was borrowed from St. Paul ’ s vision of Hell in Homily 16 of the Blickling homilies.

However, during the Battle of Megiddo, the first reliably documented battle in the fifteenth century BC, actual discipline was instilled in both armies.

However, after a gap of 150 years, there is a final mention of Bastarnae in the mid 5th century.

However, other ancient witnesses ( such as the Old Syriac Version, 2nd century ) put John's time on Patmos during the reign of Nero.

However, this chapter does appear in all copies of the Septuagint, as well as in texts from as early as the 3rd century BC.

However, economic recovery had been observed in the beginning of the 14th century.

However, 18th century theatrical dance had at least two other styles: comic or grotesque, and semi-serious.

However enough had been taken to England, Scandinavia, Western Europe, and America in the late 19th century for the breed to establish itself outside its native country.

However, since the 19th century his reputation has been dramatically rehabilitated by archaeological finds which have repeatedly confirmed his version of events.

However, mendicant friars travelled around a lot and needed a shortened, or abbreviated, daily office contained in one portable book, and single-volume breviaries flourished from the thirteenth century onwards.

However, the term classical music is used colloquially to describe a variety of Western musical styles from the ninth century to the present, and especially from the sixteenth or seventeenth to the nineteenth.

However, in the nineteenth century, cuisine became a defining symbol of national identity.

However, the Canal du Midi was built using concrete in 1670, and there are concrete structures in Finland that date from the 16th century.

However, the first modern studies of magnetism only started with the development of electrodynamics by Faraday, Maxwell and others in the nineteenth century, which included the classification of materials as ferromagnetic, paramagnetic and diamagnetic based on their response to magnetization.

However, restrictive Spanish trade laws made it difficult for Cubans to keep up with the 17th and 18th century advances in processing sugar cane pioneered in British Barbados and French Saint Domingue ( Haiti ).

However, the instability in the ratio between the two grew over the course of the 19th century, with the increase both in supply of these metals, particularly silver, and of trade.