Their migration is traced by linguistic, cultural and genetic evidence.

" Their intent was to stop the gradual migration of the Po toward the lagoon of Venice, which would have filled up with sediment had contact been made.

Their arrival in Northern cities en masse, in addition to being followed by race riots in several large cities such as Detroit, Chicago, and Philadelphia, further stimulated white suburban migration.

Their research suggests the invention of clothing may have coincided with the northward migration of modern Homo sapiens away from the warm climate of Africa, thought to have begun between 50, 000 and 100, 000 years ago.

Their original migration took them to the southern Great Plains, into a sweep of territory extending from the Arkansas River to central Texas.

Their young are perfectly symmetrical, but the head is remodelled during a metamorphosis, which entails the migration of one eye to the other side, close to the other eye.

Their migration is assisted by east winds in autumn, resulting in drift migration of Scandinavian migrants, sometimes leading to a spectacular " fall " of thousands of birds.

Their early origins are reported in Jordanes ' Origins and Deeds of the Goths, where he claims that their name derives from their later and slower migration from Scandinavia:

Their self-identification as Arabs is largely based on their tribal identity and may in fact point to the 7th and 8th centuries migration to this and other Central Asian locales of many Arab tribes from Arabia in the wake of the Islamic conquests of the region.

Their populations have been healthy since the 1960s, and have soared in recent years to more than 4 million birds ( 2011 ), most likely because of favorable breeding, migration, and wintering habitat conditions.

Their origin and the route of their migration to Asia is still a matter of great speculation.

Their death rate is therefore lower than that of the females both on the southward migration, and in resident populations.

Their parents are both birds that were hatched and led by ultralight on their first migration in 2002.

Their presence was resisted ; however, taking advantage of the nearly-constant conflict among the city-states along the lakeshores, the Mexica were able-volatile political situation, they conquered the Valley of Mexico, exacting tribute from the same powers that resisted their migration in the first place.

Their autumn migration is slow, with birds often remaining in the northern states well into December ; spring migration is much more rapid.

Their regular stopover paved the way for food / curry outlets to be opened up catering for an all male workforce as family migration and settlement took place some decades later.

Their appearance in a southward migration signals the coming of Winter.

Their main role was to defend Seljuq border areas with the Byzantine Empire — a role reinforced by the migration of many Turks to Asia Minor.

Their populations, particularly those in the western range, have declined drastically in the 20th century due to hunting along their migration routes and habitat degradation.

Their habits are poorly studied, but the squid are thought to undertake diel migration ; by day the squid remain in the blackness of the depths in midwater.

Their arrival, which coincides with the decline of Teotihuacan and a period of general turmoil and mass migration in Mesoamerica, has led scientists to speculate that they might have been involved somehow in the fall of the Teotihuacan empire.

Their offspring, or fry, overwinter in the deep and food-abundant depths of these lakes until their migration to the sea in one or two years.

Their number increased significantly during the 18th century, and again when many Spaniards left their jobs in Gibraltar after General Franco closed the border in 1969.

Their hopes were further raised by the naval victory against the French at the Battle of the Saintes and the successful defence of Gibraltar.

Their current leader is Peter Caruana, the previous Chief Minister of Gibraltar.

Their marriage (" You can get married in Gibraltar near Spain "), the first Bed-In (" Talking in our beds for a week "), the Vienna press conference (" Made a lightning trip to Vienna ... The newspapers said ..."), and the acorns (" Fifty acorns tied in a sack ") were all mentioned in the song The Ballad of John and Yoko.

Their converging styles make it difficult to exactly understand the influences each had on the other, although it is clear enough to say that Aelbert started representing large scale forms ( something he had not done previously ) and placing animals as the focus of his paintings ( something that was specific to him ).

Their julmust was never advertised until 2004, when Coca-Cola started marketing their julmust under the brand " Bjäre julmust ", but they bought the syrup from Roberts AB.

Their constitution started, " We as liberated homosexual activists demand the freedom for expression of our dignity and value as human beings ".

Their father had left just enough to maintain the family home but the onus was now on the brothers to increase their earnings from cricket to pay for their medical studies ( Fred started his in the autumn of 1872 ).

Their relocation had started as part of an effort by Swedish king Gustav Vasa, to expand agriculture to these uninhabited parts of the country.

Their training started in November 1943 at Camp Pendleton, California, moved to Santa Catalina Island, California in January 1944, and finally moved to the warmer waters of The Bahamas in March 1944.

Their palace ( ἀνάκτορον ) has been discovered ( the excavations started in 1926 and continued until 1995 ) in Pellana, Laconia, to the north-west of modern ( and classical ) Sparta.

Their expedition started from Banana at the mouth of the Congo River on 19 March and ended in Bagamoyo, Tanzania on 5 December 1889.

Their attacking quartet of Emilín, Galé, Herrerita and Isidro Lángara ( all represented Spain in this period ), as well as Casuco and Ricardo Gallart modernised the game with their pace and running off the ball tied with sharp passing and one-touch football, played in a style 30 / 40 years before its time, being dubbed Delanteras Eléctricas (" The electric forwards "); all this was connected with a rigid training and fitness regime started by a former manager of the club, English Fred Pentland.

Their first work appeared on the Soul City label, which was started by Imperial Records / United Artists Records recording artist Johnny Rivers.

Their plot failed however, because when the correct day came, Seleucus ' soldiers spontaneously started to build the city.

Their territory started at the Missouri River and extended west, including to parts of present-day Arkansas.

Their constant arguments and the pressure to hide the relationship from the public started to take its toll on the band.

Their Autumn / Winter tour started on 24 November 2006 in Basingstoke and ran until just before Christmas.

Their fans, who for a long time could not compete with the teams of the capital, grew amazingly and started to compete with the massive Morumbi crowd, and significantly passed São Paulo and Palmeiras.

The Beatles influence on rock music and popular culture was, and remains, immense. Their commercial success started an almost immediate wave of changes — including a shift from US global dominance of rock and roll to UK acts, from soloists to groups, from professional songwriters to self-penned songs, and to changes in fashion.

Their NFL campaign started just six days later, in a disappointing 6-6 tie at home against the Akron Pros.

Their first published article, " The Chaldee Manuscript ", a thinly disguised satire of Edinburgh society in biblical language which Hogg started and Wilson and Lockhart elaborated, was so controversial that Wilson fled and Blackwood was forced to apologise.

Their design had started out with the 20 mm MG 151 / 20 cannons, compact enough to be mounted in an internal wing bay mounting in the Focke-Wulf Fw 190, but it was found that it took an average of twenty 20 mm hits to shoot down a typical four engined bomber.

Their brains are relatively big, although more significant growth didn't occur before their echolocation started to evolve.

Their son Tatos anglicized his name to Tom, started a business in rubbish collection in Los Angeles and married another Karakale Jumper immigrant, Hamas Shakarian.

Their campaign in the competition had started with a tie against the club which had rejected Keegan, Doncaster Rovers, and it was Keegan who scored both Liverpool goals in a 2 – 2 draw.

Their first residence was a two-room cottage on the property and they started construction of a main house.

Their passionate affair started in 1914 when she was 19 and he was 31, although they had met two years earlier.