In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
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Question: In topological insulators, one version of this effect gives rise to a defect-resistant current induced by spin-orbit coupling. In graphene, this effect is shifted by one half, giving rise to an anomalous minimum of the relevant quantity, which can allow for ballistic transport. A more complex version of it was discovered in gallium arsenide and can be explained by Laughlin quasiparticles; this is referred to as the fractional version. This effect can be understood in terms of partial filling of Landau levels and has characteristic "plateaus", and it yields numbers called filling factors. Discovered by Klaus von Klitzing when studying a two-dimensional electron gas, for 10 points, identify this effect in which conductivity in a strong magnetic field is quantized.

Answer: Science

Question: Vivaldi wrote 37 concertos for this instrument; the most famous of which is probably La Notte.

Answer: Fine Arts

Question: Nogai, a general and effective leader of this polity, sent 4,000 troops to Michael VIII Palaiologos to help fight the despot of Thessaly. This polity's founder sent very threatening messages to Bela IV before invading and winning at the Battle of Mohi, followed by slaughtering a quarter of Hungary's population. It reached its height under Uzbek. A later leader of this polity and Vytautas the Great of Lithuania lost the Battle of Vorskla River after trying to regain his throne. Its leader Berke fought against the man who sacked Baghdad, Hulagu, but more famously, its leader Tokhtamysh lost to Tamerlane its capital of Sarai, a place where tribute was paid by people like Alexander Nevsky. For 10 points, name this polity founded by Batu Khan, which was composed of the Blue and White Hordes and supposedly named for a certain colored tent.

Answer:
History