During the Pleistocene period the Himalayan mountains were under glacial cover and climate was fluctuating between glacial and interglacial phases.

During the Pleistocene ice age, which ended roughly 10, 000 – 12, 000 years ago, the Sierra Nevada ranges were much wetter.

During the Pleistocene, what would be Leon County emerged and submerged with each glacial and interglacial period.

During the Pleistocene period a snowfield covered the top of the Mount Field plateau which fed glaciers in the surrounding valleys.

During the Pleistocene Epoch continental glaciers scraped away soil and steepened cliffs on hills around this valley, particularly on Mounts Tekoa and Shatterack east of the river, and on Turtle Mountain standing in the middle of the valley.

During the late Pleistocene era, reindeer were found as far south as Nevada and Tennessee in North America and Spain in Europe.

During the Pleistocene it occurred in vast parts of Eurasia, North America and until the middle Pleistocene ( about 1. 5 million years ago ) even in Africa.

During the Pleistocene, and mostly during the last 50, 000 years, tortoises of the mainland of southern Asia ( Colossochelys atlas ), North and South America, Australia ( Meiolania ), Indonesia, Madagascar ( Dipsochelys ), and even the island of Malta became extinct.

During the very cold Pleistocene climates, all of Denali was solidly frozen.

During the Pleistocene ( c. 1. 8 to 0. 01 mya ), the watershed was extensively modified by continental glaciation.

During the past several thousand years, eruptions of the volcanoes in the Ruiz – Tolima massif have mostly been small, and the pyroclastic flow deposits have been much less voluminous than during the Pleistocene.

During the Late Pleistocene ( 300, 000 years ago ) the gray wolf ( Canis lupus ) crossed into North America on the Bering Strait land bridge and competed with the dire wolf.

During the Pleistocene, the species widely occurred in continental Europe.

During the Pleistocene, 18, 000 years ago, Mount Greylock and the surrounding region were covered by ice sheets up to in thickness.

During the Pleistocene epoch, giant monitor lizards lived in Southeast Asia and Australasia, the best known fossil being the megalania ( Varanus priscus unless it falls in its own genus, in which case it is Megalania prisca ).

During the series of Pleistocene glaciations a succession of ice-sheets moved from northeast to southwest across Anglesey and neighbouring Arfon scouring the underlying rock, the grain of which also runs in this direction.

During the 19th century, villagers in the area digging in the fields discovered a number of bones and used them as " dragon bones " (), a reference to the traditional Chinese medicine practice of grinding up Pleistocene fossils into tonics or poultices.

During the Late Pleistocene, another species probably assignable to the genus, Sarcoramphus fisheri, occurred in Peru.

During the Pleistocene epoch, great continental ice sheets scoured and depressed the shield's surface, leaving a thin covering of glacial material and innumerable lakes and streams.

During warming at the end of the Pleistocene and Early Holocene, the area encompassing Raritan Bay changed from tundra to a landscape dominated by spruce and pine forests.

During the Pleistocene Epoch the Mansfield sandstone bedrock was carved into the current distinct formations by glacial meltwaters and their associated erosion.

During the Pleistocene, giant dormice the size of large rats, such as Leithia melitensis, lived on the islands of Malta and Sicily.

During the last ( Pleistocene ) Ice Age, two lobes of the glacier appear to have parted around the pre-existing plateau and further deepened the lowlands flanking the plateau.

During Soviet times, Armenia's rail network connected to Russia's via Georgia through Abkhazia along the Black Sea.

During the Tsarist times, the Ainu living in Russia were forbidden from identifying themselves as such, since the Imperial Japanese officials had claimed that all the regions inhabited by the Ainu in the past or present, are a part of Japan.

During the Soviet times, people with Ainu surnames were sent to gulags and labor camps, as they were often mistaken for the Japanese.

During the times of Babylonia, tar-like glue was used for gluing statues.

During ancient times Aegina was a rival to Athens, the great sea power of the era.

During times of low demand, excess power can be stored in batteries for future use.

During the 1990s, she generated controversy by criticizing immigration, Islamization and Islam in France, and has been fined five times for " inciting racial hatred ".

During ancient Roman times the balteus ( plural baltei ) was a type of baldric commonly used to suspend a sword.

During the Battle of France in 1940, De Gaulle's 4th Armoured Division and elements of the British Expeditionary Force's 1st Army Tank Brigade both made probing attacks on the German flank, actually pushing into the rear of the advancing armoured columns at times.

During recent times, mainly during the apartheid reform and post-1994 eras, many more white Afrikaans-speaking people, mainly with " conservative " political views and of Trekboer and Voortrekker descent, have preferred to be called " Boers " or Boere-Afrikaners, rather than " Afrikaners ".

During early colonial times there were gold exports to Perú from placer deposits which soon depleted.

During pre-Islamic and early Islamic times, Central Asia was a predominantly Iranian region that included the sedentary Eastern Iranic speaking Bactrians, Sogdians and Chorasmians, and the semi-nomadic Scythians and Alans.

During wartime, a shipping convoy will have a ranking officer — sometimes an active-duty naval officer, at other times a civilian master or retired naval officer — designated as the convoy commodore.

During the 1984 and 1985 seasons, Earnhardt visited victory lane six times, at Talladega, Atlanta, Richmond, Bristol ( twice ), and Martinsville, where he finished fourth and eighth in the season standings, respectively.

During most of these times, deserts have grown and shrunk independent of human activities.

During his two years at Britannia, moored at Dartmouth, Devon, he was given twenty-five times for " minor offences " and beaten three times for more serious infractions.

During colonial times, the Spanish decided that El Salvador would produce and export indigo, but after the invention of synthetic dyes in the 19th century, Salvadoran authorities and the newly created modern state turned to coffee as the main export of the economy.

During the Dutch Revolt, Eindhoven changed hands between the Dutch and the Spanish several times during which it was burned down by renegade Spanish soldiers, until finally in 1583 it was captured once more by Spanish troops and its city walls were demolished.

During the early 1980s, Cossiga attacked several times the antimafia judges and spoke in favour of judge Corrado Carnevale, a member of the Corte di Cassazione ( Italy's supreme court ) who had annulled numerous sentences against mafia leaders and was later tried for these actions.

During her career at the Grand Guignol, Maxa's characters were murdered more than 10, 000 times in at least 60 different ways and raped at least 3, 000 times.

During the times of drought there wasn't enough water to make gazpacho.

" During Washington's last five years at Tuskegee, Carver submitted or threatened his resignation several times: when the administration reorganized the agriculture programs, when he disliked a teaching assignment, to manage an experiment station elsewhere, and when he did not get summer teaching assignments in 1913-1914.

During times of heavy rainfall, much of the savannah area is covered by shallow water, making transportation by means other than a shallow-draft boat almost impossible.