Question: What language did people living in the British Isles during the era of the country for Game pie speak?

full_context: Document 1: Roman Britain: Julius Caesar invaded Britain in 55 and 54 BC as part of his Gallic Wars. The Britons had been overrun or culturally assimilated by other Celtic tribes during the British Iron Age and had been aiding Caesar's enemies. He received tribute, installed a friendly king over the Trinovantes, and returned to Gaul. Planned invasions under Augustus were called off in 34, 27, and 25 BC. In 40 AD, Caligula assembled 200,000 men at the Channel, only to have them gather seashells. Three years later, Claudius directed four legions to invade Britain and restore an exiled king over the Atrebates. The Romans defeated the Catuvellauni, and then organized their conquests as the Province of Britain (Latin: Provincia Britannia). By the year 47, the Romans held the lands southeast of the Fosse Way. Control over Wales was delayed by reverses and the effects of Boudica's uprising, but the Romans expanded steadily northward.
Document 2: British Isles: Hiberni (Ireland), Pictish (northern Britain) and Britons (southern Britain) tribes, all speaking Insular Celtic, inhabited the islands at the beginning of the 1st millennium AD. Much of Brittonic-controlled Britain was conquered by the Roman Empire from AD 43. The first Anglo-Saxons arrived as Roman power waned in the 5th century and eventually dominated the bulk of what is now England. Viking invasions began in the 9th century, followed by more permanent settlements and political change—particularly in England. The subsequent Norman conquest of England in 1066 and the later Angevin partial conquest of Ireland from 1169 led to the imposition of a new Norman ruling elite across much of Britain and parts of Ireland. By the Late Middle Ages, Great Britain was separated into the Kingdoms of England and Scotland, while control in Ireland fluxed between Gaelic kingdoms, Hiberno-Norman lords and the English-dominated Lordship of Ireland, soon restricted only to The Pale. The 1603 Union of the Crowns, Acts of Union 1707 and Acts of Union 1800 attempted to consolidate Britain and Ireland into a single political unit, the United Kingdom of Great Britain and Ireland, with the Isle of Man and the Channel Islands remaining as Crown Dependencies. The expansion of the British Empire and migrations following the Irish Famine and Highland Clearances resulted in the distribution of the islands' population and culture throughout the world and a rapid de-population of Ireland in the second half of the 19th century. Most of Ireland seceded from the United Kingdom after the Irish War of Independence and the subsequent Anglo-Irish Treaty (1919–1922), with six counties remaining in the UK as Northern Ireland.
Document 3: Roman Republic: In 121 BC, Rome came into contact with two Celtic tribes (from a region in modern France), both of which they defeated with apparent ease. The Cimbrian War (113–101 BC) was a far more serious affair than the earlier clashes of 121 BC. The Germanic tribes of the Cimbri and the Teutons migrated from northern Europe into Rome's northern territories, and clashed with Rome and her allies. At the Battle of Aquae Sextiae and the Battle of Vercellae both tribes were virtually annihilated, which ended the threat.
Document 4: Roman Republic: The staple foods were generally consumed around 11 o'clock, and consisted of bread, lettuce, cheese, fruits, nuts, and cold meat left over from the dinner the night before.[citation needed] The Roman poet Horace mentions another Roman favorite, the olive, in reference to his own diet, which he describes as very simple: "As for me, olives, endives, and smooth mallows provide sustenance." The family ate together, sitting on stools around a table. Fingers were used to eat solid foods and spoons were used for soups.[citation needed]
Document 5: Let them eat cake: ``Let them eat cake ''is the traditional translation of the French phrase`` Qu'ils mangent de la brioche'', supposedly spoken by ``a great princess ''upon learning that the peasants had no bread. Since brioche was a luxury bread enriched with butter and eggs, the quote would reflect the princess's disregard for the peasants, or her poor understanding of their situation.
Document 6: Game pie: Game pies were consumed by the wealthy in the days of the Roman Empire. Wilhelm Adolf Becker states that the emperor Augustus consumed pies that contained chicken, pheasants, pigeon, and duck.
Document 7: Fried pie: Fast food versions have gained popularity more recently. McDonald's apple pies were introduced on the menu in 1968, but in 1992 they were phased out in favor of a baked pie (claimed to be healthier) in the United States. There are some McDonald's restaurants throughout the US and world which still offer the fried pies, including all McDonald's restaurants in the United Kingdom, Japan, and Russia. Flavors include cherry and apple (US mainland), taro (Hawaii), and green bean or red bean (China). The Burger King chain also offers fried pies on its menu, in apple and ``wild berry ''flavors. Whataburger and Popeyes also offer fried pies.
Document 8: Qing dynasty: Cuisine aroused a cultural pride in the accumulated richness of a long and varied past. The gentleman gourmet, such as Yuan Mei, applied aesthetic standards to the art of cooking, eating, and appreciation of tea at a time when New World crops and products entered everyday life. The Suiyuan Shidan written by him, detailed the culinary esthetics and theory, along with a wide range of recipes from the ruling period of Qianlong during Qing Dynasty. The Manchu Han Imperial Feast originated at the court. Although this banquet was probably never common, it reflected an appreciation by Han Chinese for Manchu culinary customs. Nevertheless, culinary traditionalists such as Yuan Mei lambasted the opulent culinary rituals of the Manchu Han Imperial Feast, saying that it is cause in part by "...the vulgar habits of bad chefs" and that "Display this trite are useful only for welcoming new relations through one’s gates or when the boss comes to visit." (皆惡廚陋習。只可用之於新親上門，上司入境)
Document 9: Meat and potato pie: Meat and potato pie is a popular variety of pie eaten in England. A meat and potato pie has a similar filling to a Cornish Pasty and differs from a meat pie in that its content is usually less than 50% meat. They can be typically eaten as take-aways but are a homemade staple in many homes. Often it is served with red cabbage.
Document 10: British Isles: The earliest known references to the islands as a group appeared in the writings of sea-farers from the ancient Greek colony of Massalia. The original records have been lost; however, later writings, e.g. Avienus's Ora maritima, that quoted from the Massaliote Periplus (6th century BC) and from Pytheas's On the Ocean (circa 325–320 BC) have survived. In the 1st century BC, Diodorus Siculus has Prettanikē nēsos, "the British Island", and Prettanoi, "the Britons". Strabo used Βρεττανική (Brettanike), and Marcian of Heraclea, in his Periplus maris exteri, used αἱ Πρεττανικαί νῆσοι (the Prettanic Isles) to refer to the islands. Historians today, though not in absolute agreement, largely agree that these Greek and Latin names were probably drawn from native Celtic-language names for the archipelago. Along these lines, the inhabitants of the islands were called the Πρεττανοί (Priteni or Pretani). The shift from the "P" of Pretannia to the "B" of Britannia by the Romans occurred during the time of Julius Caesar.
Document 11: Celts: The history of pre-Celtic Europe remains very uncertain. According to one theory, the common root of the Celtic languages, the Proto - Celtic language, arose in the Late Bronze Age Urnfield culture of Central Europe, which flourished from around 1200 BC. In addition, according to a theory proposed in the 19th century, the first people to adopt cultural characteristics regarded as Celtic were the people of the Iron Age Hallstatt culture in central Europe (c. 800 -- 450 BC), named for the rich grave finds in Hallstatt, Austria. Thus this area is sometimes called the ``Celtic homeland ''. By or during the later La Tène period (c. 450 BC up to the Roman conquest), this Celtic culture was supposed to have expanded by trans - cultural diffusion or migration to the British Isles (Insular Celts), France and the Low Countries (Gauls), Bohemia, Poland and much of Central Europe, the Iberian Peninsula (Celtiberians, Celtici, Lusitanians and Gallaeci) and northern Italy (Golasecca culture and Cisalpine Gauls) and, following the Celtic settlement of Eastern Europe beginning in 279 BC, as far east as central Anatolia (Galatians) in modern - day Turkey.
Document 12: Pub: Quality dropped but variety increased with the introduction of microwave ovens and freezer food. "Pub grub" expanded to include British food items such as steak and ale pie, shepherd's pie, fish and chips, bangers and mash, Sunday roast, ploughman's lunch, and pasties. In addition, dishes such as burgers, chicken wings, lasagne and chilli con carne are often served. Some pubs offer elaborate hot and cold snacks free to customers at Sunday lunchtimes, to prevent them getting hungry and leaving for their lunch at home.
Document 13: Celts: The history of pre-Celtic Europe and the exact relationship between ethnic, linguistic and cultural factors in the Celtic world remains uncertain and controversial. The exact geographic spread of the ancient Celts is disputed; in particular, the ways in which the Iron Age inhabitants of Great Britain and Ireland should be regarded as Celts have become a subject of controversy. According to one theory, the common root of the Celtic languages, the Proto - Celtic language, arose in the Late Bronze Age Urnfield culture of Central Europe, which flourished from around 1200 BC. According to a theory proposed in the 19th century, the first people to adopt cultural characteristics regarded as Celtic were the people of the Iron Age Hallstatt culture in central Europe (c. 800 -- 450 BC), named for the rich grave finds in Hallstatt, Austria. Thus this area is sometimes called the ``Celtic homeland ''. By or during the later La Tène period (c. 450 BC up to the Roman conquest), this Celtic culture was supposed to have expanded by trans - cultural diffusion or migration to the British Isles (Insular Celts), France and the Low Countries (Gauls), Bohemia, Poland and much of Central Europe, the Iberian Peninsula (Celtiberians, Celtici, Lusitanians and Gallaeci) and northern Italy (Golasecca culture and Cisalpine Gauls) and, following the Celtic settlement of Eastern Europe beginning in 279 BC, as far east as central Anatolia (Galatians) in modern - day Turkey.
Document 14: British Isles: At the time of the Roman Empire, about two thousand years ago, various tribes, which spoke Celtic dialects of the Insular Celtic group, were inhabiting the islands. The Romans expanded their civilisation to control southern Great Britain but were impeded in advancing any further, building Hadrian's Wall to mark the northern frontier of their empire in 122 AD. At that time, Ireland was populated by a people known as Hiberni, the northern third or so of Great Britain by a people known as Picts and the southern two thirds by Britons.
Document 15: British Isles: Anglo-Saxons arrived as Roman power waned in the 5th century AD. Initially, their arrival seems to have been at the invitation of the Britons as mercenaries to repulse incursions by the Hiberni and Picts. In time, Anglo-Saxon demands on the British became so great that they came to culturally dominate the bulk of southern Great Britain, though recent genetic evidence suggests Britons still formed the bulk of the population. This dominance creating what is now England and leaving culturally British enclaves only in the north of what is now England, in Cornwall and what is now known as Wales. Ireland had been unaffected by the Romans except, significantly, having been Christianised, traditionally by the Romano-Briton, Saint Patrick. As Europe, including Britain, descended into turmoil following the collapse of Roman civilisation, an era known as the Dark Ages, Ireland entered a golden age and responded with missions (first to Great Britain and then to the continent), the founding of monasteries and universities. These were later joined by Anglo-Saxon missions of a similar nature.
ground_truth: Celtic dialects of the Insular Celtic group
sub_queries: Which was the country for Game pie? Answer: Roman Empire
The people that lived in the British Isles during the Roman Empire era spoke which language? Answer: Celtic dialects of the Insular Celtic group