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.

Her third husband was a farmer who lost his crops to a horde of fairy mice, but they stopped harassing him after he caught one and threatened to hang it. Before she married Manawydan, she had a child by her second husband who vanished from their home and ended up at the court of Teirnon. The daughter of Hefeydd the Old, this lady of the Singing Birds decided that she preferred a lord of Dyfed to her first husband, Gwawl. Considered a version of the horse goddess Epona, she was the mother of Pryderi by the man she loved, Pwyll. FTP, name this figure from Welsh myth who rings like a bell through the night in a song by Fleetwood Mac.
Social Science

An author from this country wrote about The Maniac, who impersonates a judge in Accidental Death    of an Anarchist. Another author from this country wrote of a boy who steals a Nazi's gun in The Path  to the Nest of Spiders. Another writer from this country wrote about interruptions to a production of   a play by characters such as the Father and the Mother in Six Characters in Search of an Author. A  series of one hundred tales is told in another work from this country called The Decameron. Identify  this country, the home of Dario Fo, Italo Calvino, Luigi Pirandello, and Boccaccio [boh-KAHT-choh].
Literature

The relationship between temperature and this quantity is given by the Steinhart-Hart equation. Tunnel diodes have a negative value for this quantity, whose changes are measured by the most common type of strain gauge. The proximity and skin effects cause increases in this quantity with increasing frequency. The time constant tau is equal to indudctance divided by this quantity in an RL circuit. An unknown value of this quantity can be determined with a Wheatstone bridge. This quantity is the real part of impedance in AC circuits, and it is equal to voltage divided by current. For 10 points, name this opposition to the flow of current that is measured in ohms.

Science