instruction:
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.
question:
A weight of the nth power of this parameter is imputed to contributions to elements of an S matrix by nth-order Feynman diagrams; thus, this number can be considered the order of expansion in perturbative quantum electrodynamics. This constant is a measure of the electron anomalous magnetic moment, which explains its role in the relativistic splitting of atomic spectral lines that is its namesake. The coupling constant for the electromagnetic interactions of electrons, it is equal to the square of the ratio of the electron and Planck charges, or, in cgs units, the electron charge squared divided by the speed of light times Diracs constant. For ten points, name this physical constant usually denoted alpha and equal to about one over one hundred thirty-seven.
answer:
Science

question:
This man reformed the fyrd militia system so that it fought in shifts, allowing for the creation of a standing army without disrupting agriculture. In addition to establishing the burhs system of forts, this man built a secret military base on the swamp island of Athelney. This mans advisors included Bishop Asser, who wrote an early biography of him. This author of the so-called doom book won control of all territory west of Watling Street when he won the Battle of Edington against Guthrum the Old. Apart from translating many religious works into English, he is best known for ending the Danegeld. For ten points, name this King of Wessex, the only English monarch with the epithet the Great.
answer:
History

question:
This country began one conflict with a northern neighbor by advancing to Dhola, and it lost one of the largest tank battles in history at Chawinda. This state recaptured land in the Kargil War in a case prominently cited as disproving the Democratic Peace Theory. One war in this country began with the Treaty of Surbat, while another ended only with the intervention of the Holkars. Another series of conflicts in this nation began with the intrigues of Joseph Duplieux and ended with a decisive defeat for one side at the Battle of Wandiwash. Conflicts here have included the Carnatic wars, Mysore wars, and Maratha wars. For 10 points, identify this country which saw a victory for Robert Clive at the Battle of Plassey, as well as three battles of Panipat.
answer:
History