During intercrisis periods the educational facilities of the community have the possibility of remolding the perspectives and altering the behavior of vast numbers of human beings of every age and condition.

During fiscal years 1959 and 1960, there were 139 military and civilian students who came to the Institute for varying periods of special instruction.

During all this time Roy continued to paint, first only on weekends, and then, as the family business permitted, for longer periods.

During summer vacation periods these records are stored in the office of the principal.

During the Hellenistic and Roman periods, many of the existing buildings in the area of the Acropolis were repaired, due to damage from age, and occasionally, war.

During periods of major depression or mania ( in BPI ), functioning was on average poor, with depression being more persistently associated with disability than mania.

During periods of global warming, ice breaks off the poles and floats across submerged continents, carrying debris with it, he conjectured.

During periods of quiet, the corona is more or less confined to the equatorial regions, with coronal holes covering the polar regions.

During the long cruise periods of the mission, spacecraft operations are essentially suspended.

During older periods of the Greek language, loan words into Greek acquired Greek inflections, leaving thus only a foreign root word.

During a period of hyperinflation, bank runs, loans for 24-hour periods, switching to alternate currencies, the return to use of gold or silver or even barter become common.

During periods of particularly high demand for ammunition, such as after the November 2008 election of President Barack Obama, or after the 1994 Assault Weapons Ban in that country, factory ammunition can become considerably more expensive or even unavailable in stores.

During periods of submersion, thick layers of limestone were laid down over the old igneous and metamorphic rock.

During two of the coldest periods in the last 250 years ( 1780s and 1810s ), the frequency of hurricanes in the Jamaica region was unusually high.

During the course of all three periods, Ribbentrop met frequently with leaders and diplomats from Italy, Japan, Romania, Spain, Bulgaria, and Hungary.

During a meeting with General Douglas MacArthur, Dr. Honma produced blades from the various periods of Japanese history and MacArthur was able to identify very quickly what blades held artistic merit and which could be considered purely weapons.

During periods of exile and imprisonment, he gradually became a Marxist.

During the Counter Reformation and Baroque periods ( late 16th and 17th centuries ), the cult of Mary Magdalene saw a great, new popularity as the Catholic Church publicized her as an attractive, persusasive model of repentance and reform, in keeping with the goals of the reform Council of Trent ( 1545 – 63 ).

During periods when the river is low, the many beaches along the Nanay are popular destinations.

During the Roman periods it was renowned as the largest temple in Greece and housed one of the largest cult statues in the ancient world.

During the Baroque and Classical periods, recitative could appear in two basic forms: secco ( dry ) recitative, accompanied only by continuo, which was usually a harpsichord and a cello ; or accompagnato ( also known as strumentato ) in which the orchestra provided accompaniment.

During the more than 1500 years of their existence, the Benedictines have not been immune to periods of laxity and decline, often following periods of greater prosperity and an attendant relaxing of discipline.

During his periods of self-imposed isolation, Rudolf reportedly had affairs with his court chamberlain, Wolfgang von Rumpf, and a series of valets.

During periods away from Hawkwind duties, and after finally leaving the group in 1979, Calvert worked on his solo career, his creative output including albums, stage plays, poetry, and a novel.

During the Yuan dynasty, Halal methods of slaughtering animals and preparing food was banned and forbidden by the Mongol Emperors, starting with Genghis Khan who banned Muslims and Jews from slaughtering their animals their own way, and making them follow the Mongol method.

During the Middle Ages, Muslims were in conflict with Zoroastrians during the Islamic conquest of Persia ; Christians were in conflict with Muslims during the Byzantine-Arab Wars, Crusades, Reconquista and Ottoman wars in Europe ; Christians were in conflict with Muslims during the Crusades, Reconquista and Inquisition ; Shamans were in conflict with Buddhists, Taoists, Muslims and Christians during the Mongol invasions ; and Muslims were in conflict with Hindus and Sikhs during Muslim conquest in the Indian subcontinent.

During the Mongol invasion, many natives of Afghanistan fled to India where some established dynasties in Delhi.

During his first crusade in 1248, Louis was approached by envoys from Eljigidei, the Mongol ruler of Armenia and Persia.

During The Mongol invasion of Europe, Tatars under the leadership of Kadan, experienced a major failure in March 1242 at Klis Fortress in southern Croatia.

During his reign, the unsuccessful Mongol invasions of Japan occurred, first in 1274 and again in 1281.

During the Mongol Empire ( 1206 – 1405 ), printing using movable type spread from China to Central Asia.

During the Mongol Yuan Dynasty ( 1271 – 1368 ) the capital of China was moved to Beijing, eliminating the need for the canal arm flowing west to Kaifeng or Luoyang.

During World War II, the invading Nazi Germans also recruited Mongol Kalmyks to fight for them against the Soviet Union.

During the Cultural Revolution, the administration of Ulanhu was purged, and a wave of repressions was initiated against the Mongol population of the autonomous region.

During this period, the Mongol troops led by Genghis carried out six rounds of attacks against Western Xia over a period of twenty-two years ( 1202, 1207, 1209 – 10, 1211 – 13, 1214 – 19, 1225 – 26 ).

During the last round of the Mongol attacks, Genghis died in Western Xia.

During the Yuan Dynasty, the Mongol emperors made Esoteric Buddhism the official religion of China, and Tibetan lamas were given patronage at the court.

During Mongol campaigns against the Jin Dynasty, the Mongols used about 5, 000 trebuchets, and they were very successful in destroying the Jin fortresses.

During the last round of the Mongol attacks, Genghis died in Western Xia.

During the Trần Dynasty, the armies of the Mongol Empire under Mongke Khan and Kublai Khan, the founder of the Yuan dynasty invaded Vietnam in 1257 AD, 1284 AD, and 1288 AD.

During the Mongol rule, in 1334, Hubei was devastated by the world's first recorded outbreak of the Black Death, which spread during the following three centuries to decimate populations throughout Eurasia.

During the period of Mongol Yuan Dynasty's administrative rule of Tibet, majority of Qinghai belonged to one of the three commandaries of the Tibetan region divided at that time, namely Amdo ( Tibetan: ཨ ༌ མད ོ; Chinese: 安多 ; pinyin: Ānduō ).

During the first Mongol invasion in 1231, Hong Bok-won greeted the Mongol army and turned against Goryeo.

During the Yuan Dynasty, banknotes were adopted by the Mongol Empire.

During the Mongol Yuan dynasty, the official writing system was:

During his first 15 years in China ( 1583 – 1598 ) Matteo Ricci formed a strong suspicion that Marco Polo's " Cathay " is simply the " Tatar " ( i. e., Mongol ) name for the