During excavation, the crater grows as the accelerated target material moves away from the impact point.

During the excavation, Helena is alleged to have rediscovered the True Cross, and a tomb, though Eusebius's account makes no mention of Helena's presence at the excavation, nor of the finding of the cross but only the tomb.

* During construction of the Canadian Pacific Railway in 1883, blasting and excavation reveal high concentrations of nickel – copper ore at Murray Mine on the edge of the Sudbury Basin located near Sudbury, Ontario, Canada.

During a major excavation in 1900 his sarcophagus was relocated from his original resting place in front of the altar to the crypt, where it is still visible today along with those of seven of his successors.

During the excavation for the royal tomb house for King George III under the Wolsey tomb-house in 1810-1813 two lead coffins clearly labelled as George Plantagenet and Mary Plantagenet were discovered and moved into the adjoining vault of Edward IV's but at the time no effort was made to identify the two lead coffins already in the vault.

During the excavation of the rubble of Scopas ' dining hall, Simonides was called upon to identify each guest killed.

During an excavation in 2004, a team of archaeologists discovered cultural remains buried by the 1815 eruption.

During the early medieval period ( 11-12th century AD ) a huge structure of nearly 50 metres north-south orientation was constructed which seems to have been short lived as only four of the 50 pillar bases exposed during the excavation belonged to this level with a brick crush floor.

During the 1938 season, further consolidation was undertaken as well as the excavation of burials and the attempt to establish a chronology of occupation via layers.

During the excavation of the Globe in 1989 a layer of nutshells was found, pressed into the dirt flooring so as to form a new surface layer.

During the first formal scientific excavation in 1967, several skeletons, together with bronze grave gifts, were unearthed.

During an archaeological excavation made later in 2006, it was noticed that an electric ground cable had been dug in the courtyard at 40 cm depth.

During excavation, in 1826, a splendid bronze statue of a winged Victory was found within the Capitolium, apparently hidden in late antiquity, probably to preserve it from one of the various sackings that the town had to endure in those times.

During excavation of the entrance trail, arrowheads and spearheads dating from 5, 000 BC were found.

During excavation, the rock frequently broke apart or " slabbed " and collapsed into the tunnels, and metal bolts had to be drilled into the rock to secure it.

During excavation of Mound 72, a ridge-top burial mound south of Monks Mound, archaeologists found the remains of a man in his 40s who was probably an important Cahokian ruler.

During his excavation of Babylon in 1899-1917, Robert Koldewey discovered a royal archive room of King Nebuchadnezzar near the Ishtar Gate.

During excavation of the site the foundations had stones that had the character of Roman workmanship, and Samian pottery was discovered.

During the excavation of Museum station, La Trobe Street and its tram tracks were temporarily relocated from December 1973 to the south onto the site of what is now the Melbourne Central Shopping Centre, and was moved back in 1978.

During the excavation, remains of private houses containing Roman baths and heated floors were found.

During the excavation for the foundation, contractors found threads and flakes of gold embedded within pieces of granite removed from the site.

During the excavation many finds were recovered.

During the excavation of the tunnel many important fossils were uncovered, including rhinoceros, lion, and, mammoth ; the site was known as the ' Stoke Bone Beds '.

During the past year I have discussed this matter with the leaders of several Western nations.

During the post-World War I period ski-lifts were built in Swiss and Austrian towns to accommodate winter visitors, but summer tourism continued to be important ; by the mid-20th century the popularity of downhill skiing increased greatly as it became more accessible and in the 1970s several new villages were built in France devoted almost exclusively to skiing, such a Les Menuires.

During the past 50 years, 7, 435 Schmidt camera plates were used to complete several sky surveys that make the data in USNO-B1. 0 accurate to within 0. 2 arcsec.

During his reign, Spain lost its last colonies in the Americas ( Cuba and Puerto Rico ) and the Philippines ; fought and, after several setbacks, won a war in Morocco ; witnessed the start of the Spanish Generation of 1927, and endured the dictatorship of Miguel Primo de Rivera.

During the lifetime of Muhammad, he was involved in several campaigns such as the Battle of Uhud, the Battle of the Trench, the Invasion of Banu Qurayza, Battle of Khaybar, the Conquest of Mecca, the Battle of Hunayn, the Siege of Ta ' if, and the Battle of Tabuk where he was reported to have given all of his wealth for the preparation of this expedition.

During the press conference, the astronauts answered questions pertaining to several technical and non-technical aspects of the mission prepared and listed by priority at the Manned Spacecraft Center in Houston by journalists covering the flight.

During the last glacial period of the Würm glaciation, the Black Forest was covered by glaciers ; several tarns ( or lakes ) such as the Mummelsee are remains of this period.

During 1996, however, the economy collapsed due to an unstable and decentralised banking system, a wave of hyperinflation throughout several countries of Eastern Europe, and slow reforms, which led to an inflation rate of 311 % and the collapse of the lev.

During the early years of his career he produced several drawings and additional contributions for Target: The Political Cartoon Quarterly.

During the Second World War, Bletchley Park was the site of the United Kingdom's main decryption establishment, the Government Code and Cypher School ( GC & CS ), where ciphers and codes of several Axis countries were decrypted, most importantly the ciphers generated by the German Enigma and Lorenz machines.

During the early 1970s, Manchester United were no longer competing among the top teams in England, and at several stages were battling against relegation.

During a ferocious battle, Teach and several of his crew were killed by a small force of sailors led by Lieutenant Robert Maynard.

During the few years after its foundation the British Museum received several further gifts, including the Thomason Collection of Civil War Tracts and David Garrick's library of 1, 000 printed plays, but yet contained few ancient relics recognisable to visitors of the modern museum.

During one such incident, at Dartmouth, several members of Baralongs crew were arrested after destroying a local saloon.

During World War II, the company diverted several resources to support the war effort and relinquished its West Coast markets to conserve rail car space.

During the 1980s, several thrash metal bands formed a prototype for black metal.

During the same time period, Bixby directed several episodes of another short-lived television series, Wizards and Warriors, which aired in 1983.

During World War II, the Soviet Union annexed several countries as Soviet Socialist Republics within the Union of Soviet Socialist Republics.

During 2004, several high-profile corruption scandals shattered the foundations of PUSC.

During the early 20th century, a Caltech committee visited several universities and decided to transform the undergraduate housing system from regular fraternities to a house system.

During World War II, a US submarine, the USS Puffer ( SS-268 ), came under several hours of depth charge attack by a Japanese surface vessel until the ship became convinced the submarine had somehow escaped.

During the early 1880s, Monet painted several groups of landscapes and seascapes in what he considered to be campaigns to document the French countryside.

During the 2006 season, return specialist Devin Hester set several kick return records.

During the 1869 season, Cleveland was among several cities which established professional baseball teams following the success of the 1869 Cincinnati Red Stockings, the first fully professional team.

During Chiang's rule, attacks on foreigners by Kuomintang forces flared up in several incidents.