During the Pliocene, the Central American Isthmus formed, causing the Great American Interchange, and a mass extinction of much of the indigenous South American megafauna.

During late Miocene and early Pliocene times, one of the largest flood basalts ever to appear on the earth's surface engulfed about of the Pacific Northwest, forming a large igneous province.

During the period of about 4 hours around sunset, skywave transmission conditions are building up until full nighttime conditions prevail ; ;

During the Achaemenid Persian Empire, around 600 BC the Persians first began to use the abacus.

During the same period the Georgian states of Colchis and Tabal arose around the Black Sea and central Anatolia respectively.

During the next decade ` Abdu ' l-Bahá would be in constant communication with Bahá ' ís around the world, helping them to teach the religion ; the group included May Ellis Bolles in Paris, Englishman Thomas Breakwell, American Herbert Hopper, French Hippolyte Dreyfus, Susan Moody, Lua Getsinger, and American Laura Clifford Barney.

During the 19th century it was enlarged, principally by architects John Nash and Edward Blore, forming three wings around a central courtyard.

During " Thank God I'm a Country Boy ", Charlie Zill an usher in the club level sections ( 244 ) puts on overalls, straw hat, false teeth and starts dancing around.

During his youth, he did not escape trying temptations and around this time he thought of retiring from the world and living a life of solitude and prayer.

During the lull, Nelson gave orders that boats be sent to pull survivors from the water around the remains of Orient.

During the 1850s, new plantations were established around the house, and exotic conifers were planted in the grounds.

During the 1790s, there emerged of a new generation of composers, born around 1770, who, while they had grown up with the earlier styles, found in the recent works of Haydn and Mozart a vehicle for greater expression.

During this time period, Marker began to travel around the world as a journalist and photographer, a vocation he would continue the rest of his life.

During the Nationalist's retreat from Nanjing, the dams around the city were deliberately destroyed by the Nationalist army in order to delay the Japanese advance, killing 500, 000 people in the subsequent 1938 Yellow River flood.

West Cornwall, around Mount's Bay, was traditionally thought to have been visited by metal traders from the eastern Mediterranean During the first millennium BC trade became more organised, first with the Phoenicians, who settled Gades ( Cadiz ) around 1100 BC, and later with the Greeks, who had settled Massilia ( Marseilles ) and Narbo ( Narbonne ) around 600 BC.

During the winter months, temperatures average a high of and a low of around, whereas during the summer a mean high of and a low of can be expected.

During the wet season, food is abundant and giraffes are more spread out, while during the dry season, they gather around the remaining evergreen trees and bushes.

During World War II, the Gestapo was expanded to around 46, 000 members.

During the next three years, he moved around, spending time at Halle and Berlin.

During the Wars of the Roses two battles were fought in and around St Albans.

During this time the Society lost about 120 people and others fell ill until conditions were improved and the swamps around the area were drained.

During the 1st centuries of what is called the " Amorite period ", the most powerful city states were Isin and Larsa, although Shamshi-Adad I came close to uniting the more northern regions around Assur and Mari.

During the process, there were two major debates, centering around the issues of borders and religion.

During this time period, European merchants had the ability to “ roam the high seas and appropriate surpluses from around the world ( sometimes peaceably, sometimes violently ) and to concentrate them in Europe .”

During World War II, Operation Scavenger was the aerial bombardment of Iwo Jima and the Bonin Islands on 4-5 August, 1944, as part of the preparation for the invasion and other fighting around the Marianas Islands.

During the game he scored 4-5 of Munster ’ s total of 7-11.

During 4-5 May 1945, the camp authorities sought to exhume and hide the bodies of their victims, sinking about 25 in the fjord near the camp.

During the summer months, the population increases 4-5 times.

During his 3 years as a starter, the team posted records of 4-5, 8-1 and 8-0-1.

During the Miocene ( 23 to 5 Mya ), mammals were fairly modern.

In the famous long scroll Along the River During the Qingming Festival painted by Zhang Zeduan ( 1085 – 1145 AD ) during the Song Dynasty ( 960 – 1297 AD ), a suanpan is clearly seen lying beside an account book and doctor's prescriptions on the counter of an apothecary's ( Feibao ).

During the period of the Iberian Union ( 1580 – 1640 ), Portugal lost influence and power and made new enemies.

During World War I, the Armenian Genocide, the Greek genocide ( especially in Pontus ), and the Assyrian Genocide almost entirely removed the ancient communities of Armenian and Assyrian populations in Anatolia, as well as a large part of its ethnic Greek population.

During World II the winter games were canceled but after that time the Winter Games have been held in St. Moritz ( 1948 ), Innsbruck, Austria ( 1964 and 1976 ), Grenoble, France, ( 1968 ), Albertville, France, ( 1992 ), and Torino, Italy, ( 2006 ).

During its preparation he became a friend of Cosima Wagner ( then in Strasbourg ), with whom he had many theological and musical conversations, exploring his view of Bach's descriptive music, and playing the major Chorale Preludes for her at the Temple Neuf.

During January – February 2007, Armenia ’ s trade with Russia and other former Soviet republics was $ 205. 6 million ( double the amount from the same period the previous year ), making them the country ’ s number one trading partner.

During his 72 years of Imamat ( 1885 – 1957 ), the community celebrated his Golden ( 1937 ), Diamond ( 1946 ) and Platinum ( 1954 ) Jubilees.

During his brother's reign, he participated in the taking of Huesca ( the Battle of Alcoraz, 1096 ), which became the largest city in the kingdom and the new capital.

During this time he had officially as students Michel Demazure ( who worked on SGA3, on group schemes ), Luc Illusie ( cotangent complex ), Michel Raynaud, Jean-Louis Verdier ( cofounder of the derived category theory ) and Pierre Deligne.

During the same period as the building of the Erechtheum, a combination of sacred precincts including the temples of Athena Polias, Poseidon, Erechtheus, Cecrops, Herse, Pandrosos and Aglauros, with its so-called the Kore Porch ( or Caryatids ' balcony ), was begun.

During the Helvetic Republic ( 1798 – 1803 ), the county of Baden, the Freie Ämter and the region known as the Kelleramt were combined into the Canton of Baden.

During the summer months ( April – September ), dogs are banned from the Silver Sands but they are allowed all year round at the Black Sands.

During the 18th century, again, at Hyderabad ( Sind ), two envoys, sent by the Jodhpur chief in regard to a quarrel between the two states, stabbed the prince and twenty-six of his suite before they themselves fell.

During the early 1960s, while also active in ASCII standardization, IBM simultaneously introduced in its product line of System / 360 the 8-bit Extended Binary Coded Decimal Interchange Code ( EBCDIC ), an expansion of their 6-bit binary-coded decimal ( BCDIC ) representation used in earlier card punches.

During the mid-1980s, many sysops opted for the less expensive, ubiquitous Commodore 64 ( introduced in 1982 ), which became popular among software pirate groups.

During his post-ABBA career Andersson won four Swedish Grammis awards, and together with Ulvaeus received the " Special International " Ivor Novello award from ' The British Academy of Composers and Songwriters ', twice " The Music Export Prize " from the Swedish Ministry of Industry and Trade ( 2008 ), as well as the " Lifetime Achievement " award from the Swedish Music Publishers Association ( SMFF ).

During the years under Gropius ( 1919 – 1927 ), he and his partner Adolf Meyer observed no real distinction between the output of his architectural office and the school.

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 sporulation, many Bt strains produce crystal proteins ( proteinaceous inclusions ), called δ-endotoxins, that have insecticidal action.

During the years of the Polish-Lithuanian Commonwealth ( 1569 – 1795 ), official documents were written in Polish, Ruthenian and Latin, with Lithuanian being mostly an oral language, with small quantities of written documents.