Problem: Given the question: What is the answer for the question: Who could not defend their Balkan territories from barbarian incursions? from the following article ? Neanderthal remains dating to around 150,000 years ago, or the Middle Paleolithic, are some of the earliest traces of human activity in the lands of modern Bulgaria. The Karanovo culture arose circa 6,500 BC and was one of several Neolithic societies in the region that thrived on agriculture. The Copper Age Varna culture (fifth millennium BC) is credited with inventing gold metallurgy. The associated Varna Necropolis treasure contains the oldest golden jewellery in the world with an approximate age of over 6,000 years. The treasure has been valuable for understanding social hierarchy and stratification in the earliest European societies.The Thracians, one of the three primary ancestral groups of modern Bulgarians, appeared on the Balkan Peninsula some time before the 12th century BC. The Thracians excelled in metallurgy and gave the Greeks the Orphean and Dionysian cults, but remained tribal and stateless. The Persian Achaemenid Empire conquered most of present-day Bulgaria in the 6th century BC and retained control over the region until 479 BC. The invasion became a catalyst for Thracian unity, and the bulk of their tribes united under king Teres to form the Odrysian kingdom in the 470s BC. It was weakened and vassalized by Philip II of Macedon in 341 BC, attacked by Celts in the 3rd century, and finally became a province of the Roman Empire in AD 45.By the end of the 1st century AD, Roman governance was established over the entire Balkan Peninsula and Christianity began spreading in the region around the 4th century. The Gothic Biblethe first Germanic language bookwas created by Gothic bishop Ulfilas in what is today northern Bulgaria around 381. The region came under Byzantine control after the fall of Rome in 476. The Byzantines were engaged in prolonged warfare against Persia and could not defend their Balkan territories from barbarian incursions. This enabled the Slavs to enter the Balkan Peninsula as marauders, primarily through an area between the Danube River and the Balkan Mountains known as...
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The answer is:
The Byzantines

Problem: Given the question: What is the answer for the question: What is the first name of the person who was paid one guinea for performing at a harvest festival celebration? from the following article ? In 1937 Ferrier entered the Carlisle Festival open piano competition and, as a result of a small bet with her husband, also signed up for the singing contest. She easily won the piano trophy; in the singing finals she sang Roger Quilter's To Daisies, a performance which earned her the festival's top vocal award. To mark her double triumph in piano and voice, Ferrier was awarded a special rose bowl as champion of the festival.After her Carlisle victories, Ferrier began to receive offers of singing engagements. Her first appearance as a professional vocalist, in autumn 1937, was at a harvest festival celebration in the village church at Aspatria. She was paid one guinea. After winning the gold cup at the 1938 Workington Festival, Ferrier sang Ma Curly-Headed Babby in a concert at Workington Opera House. Cecil McGivern, producer of a BBC Northern radio variety show, was in the audience and was sufficiently impressed to book her for the next edition of his programme, which was broadcast from Newcastle on 23 February 1939. This broadcasther first as a vocalistattracted wide attention, and led to more radio work, though for Ferrier the event was overshadowed by the death of her mother at the beginning of February. At the 1939 Carlisle Festival, Ferrier sang Richard Strauss's song All Souls' Day, a performance which particularly impressed one of the adjudicators, J. E. Hutchinson, a music teacher with a considerable reputation. Ferrier became his pupil and, under his guidance, began to extend her repertoire to include works by Bach, Handel, Brahms and Elgar.When Albert Wilson joined the army in 1940, Ferrier reverted to her maiden name, having until then sung as 'Kathleen Wilson'. In December 1940 she appeared for the first time professionally as 'Kathleen Ferrier' in a performance of Handel's Messiah, under Hutchinson's direction. In early 1941 she successfully auditioned as a singer with the Council for the Encouragement of the Arts (CEMA), which provided concerts and other entertainments to military camps,...
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The answer is:
Kathleen

Problem: Given the question: What is the answer for the question: What is the full name of the city for which commuters from Maryland and Virginia suburbs raise its population to more than one million during the workweek? from the following article ? Washington, D.C., formally the District of Columbia and commonly referred to as Washington or D.C., is the capital of the United States. Founded after the American Revolution as the seat of government of the newly independent country, Washington was named after George Washington, the first President of the United States and a Founding Father. As the seat of the United States federal government and several international organizations, Washington is an important world political capital. The city is also one of the most visited cities in the world, with more than 20 million tourists annually.The signing of the Residence Act on July 16, 1790, approved the creation of a capital district located along the Potomac River on the country's East Coast. The U.S. Constitution provided for a federal district under the exclusive jurisdiction of the U.S. Congress, and the District is therefore not a part of any state. The states of Maryland and Virginia each donated land to form the federal district, which included the pre-existing settlements of Georgetown and Alexandria. The City of Washington was founded in 1791 to serve as the new national capital. In 1846, Congress returned the land originally ceded by Virginia; in 1871, it created a single municipal government for the remaining portion of the District. Washington had an estimated population of 702,455 as of July 2018, making it the 20th most populous city in the United States. Commuters from the surrounding Maryland and Virginia suburbs raise the city's daytime population to more than one million during the workweek. Washington's metropolitan area, the country's sixth largest, had a 2017 estimated population of 6.2 million residents.All three branches of the U.S. federal government are centered in the District: Congress (legislative), president (executive), and the U.S. Supreme Court (judicial). Washington is home to many national monuments, and museums, primarily situated on or around the National Mall. The city hosts 177 foreign embassies as well as the headquarters...
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The answer is:
Washington, D.C.