However, as Andronikos ' rule went on, the Emperor became increasingly paranoid and violent – in September 1185, Andronikos ordered the execution of all prisoners, exiles and their families for collusion with the invaders – and the Byzantine Empire descended into a terror state.

However other alloys such as low tin bronze were also used and they vary depending on local cultural attitudes, the purpose of the metal and access to zinc, especially between the Islamic and Byzantine world.

However, in the Byzantine and other Eastern rites, whether Eastern or Oriental Orthodox or Eastern Catholic, chrismation is done immediately after baptism, and thus the priest is the one who confirms, using chrism blessed by a bishop.

However, Galen and the ancient Greek medical tradition generally continued to be studied and followed in the Eastern Roman Empire, commonly known as the Byzantine Empire.

However, the weight of Byzantine Imperial influence and the threat of continual Turkish raids, discouraged a formal separation of the Galatians and instead they returned to the orbit of Byzantine control.

However, the Byzantine fleet sailed with enough provisions for only three months.

However, the Turks were driven back from the Aegean coast by the First Crusade, and the island reverted to Byzantine rule.

However, defeats for the Latin empire resulted in the island reverting to Byzantine rule in 1225.

However, the Arab invasions came at a time when both ancient powers were exhausted from the protracted Byzantine – Sassanid Wars, particularly the bitterly fought Byzantine – Sassanid War of 602 – 628 which had brought both empires close to collapse.

However, as the Byzantine civil war of 1341 – 1347 dissipated the last resources of the Byzantine Empire, the auxiliary armies of the Emirs of Turkish principalities were frequently called over and employed in Europe.

However, in Byzantine and in Western European history, dynastic marriages were quite usual and there are many examples which were much more strange.

However, the major issue that presented itself during Sergius ’ pontificate was the question over the fourth marriage of the Byzantine Emperor Leo VI.

However, those items could also have been Byzantine imports, and there is no reason to assume that the Varangians travelled significantly beyond Byzantium and the Caspian Sea.

However, in 751 the Lombard king, Aistulf, succeeded in conquering Ravenna, thus ending Byzantine rule in northern Italy.

However, the couple's son Vladimir Monomakh bore the family name of the Roman / Byzantine emperor, giving the story credence.

However, the change of sovereignty from the Byzantine Empire to the Ottoman one did not affect the city's prestige as a major imperial city and trading hub.

However, this policy necessarily meant war with not only the Byzantine Empire but the Muslim Fatimid Caliphate as well, who claimed southern Italy as within their sphere influence.

However, specialists of this period of Byzantine history, such as Paul Lemerle, have shown that Photius could not have compiled his Bibliotheca in Baghdad because he clearly states in both his introduction and his postscript that when he learned of his appointment to the embassy, he sent his brother a summary of books that he read previously, " since the time I learned how to understand and evaluate literature " i. e. since his youth.

However, the Byzantine position on Sicily deteriorated, and Syracuse fell to the Emirate of Sicily in 878.

However, the outbreak of an epidemic soon began decimating the Turks and the prisoners were recovered, while the survivors were quickly recruited in the Byzantine army.

However Matthew Kantacouzenos asked his father, Byzantine Emperor John Kantacouzenos VI for help and 10, 000 Ottoman Turks showed up at Demotika in October 1352 and engaged the forces of John V's Serbian allies in an open field battle which resulted in the destruction of the allies and a victory for the more numerous Turks in the service of the Byzantines.

However, commonly there are delays in regulatory and legislative actions to limit the use of antibacterials, attributable partly to resistance against such regulation by industries using or selling antibacterials, and to the time required for research to test causal links between antibacterial use and resistance.

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

However, due to Japan's well-crafted fortifications and stiff resistance, the battle lasted over two months.

However, at the end of the sixteenth century resistance and competition came up from other countries as well.

However, the proposal to define papal infallibility itself as dogma met with resistance, not because of doubts about the substance of the proposed definition, but because some considered it inopportune to take that step at that time.

However, in this context it becomes inaccurate when the diffusion constant is low and the radiation becomes limited by the speed of light rather than by the resistance of the material the radiation is flowing through.

However, resistance groups and those who were in moral or political opposition to the Nazis were stalled by the fear of reprisals from the Gestapo.

However, the Silures were still not pacified, and Cartimandua's ex-husband Venutius replaced Caratacus as the most prominent leader of British resistance.

However, if one connects the resistors in series, then the average resistance is the arithmetic mean of x and y ( with total resistance equal to the sum of x and y ).

However real inductors have resistance ( due to the resistance of the wire and losses in core material ), and parasitic capacitance ( due to the electric field between the turns of wire which are at slightly different potentials ).

However, typically inductors have winding resistance from the metal wire forming the coils.

However, many Southerners empathized with his defiance, refusal to accept defeat, and resistance to Reconstruction.

However, the plan was met with resistance in Poland, Lithuania, and the Soviet Union, which opposed any international force in Lithuania.

However, the two countries have been unable even to reach agreement on a basic bilateral treaty ; Romania is insistent ( against determined Moldovan resistance ) that such a treaty would have to refer to Romania and Moldova's ' special relationship '.

However, the Order of Reason became less and less focused on improving the daily lives of sleepers and more concerned with eliminating any resistance to their choke-hold on the minds of humanity.

However, at least one wild potato species, Solanum fendleri, is found as far north as Texas and used in breeding for resistance to a nematode species that attacks cultivated potatoes.

However, the extreme resistance of Deinococcus radiodurans to radiation, cold, dehydration and vacuum shows that at least one known organism is capable of surviving the hazards of space without need for special protection.

However, Manfred had not lost his nerve and organized a resistance supported by his faithful Saracen troops, setting riots against the new authority.

However, many endogenous retroviruses play important roles in host biology, such as control of gene transcription, cell fusion during placental development in the course of the germination of an embryo, and resistance to exogenous retroviral infection.

However, Lebanese resistance groups such as Hezbollah use it to justify attacks against Israeli forces in that region, creating a potentially dangerous flashpoint along the Lebanon-Israeli border.

However, there is continued resistance by some researchers over the application of evolutionary models to humans, particularly from within the social sciences, where culture has long been assumed to be the predominant driver of behavior.