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.

[Q]: People escaping during this event utilized the McCorkell Line to seek passage to Canada and US. In the country where this took place, it is referred to as ""an Gorta Mor"" or ""an Drochshaol. "" One response to this event was Robert Peel's decision to repeal the Corn Laws. Thought to be caused an oomycete known as Phytophthora infestans, this event resulted in approximately a million deaths. For 10 points, name this massive dying caused by a blight, which affected a particular crop in the 1840's and 50's in Ireland.
[A]: Social Science

[Q]: Japan's Chikyu Hakken is trying to reach this region, and n-waves travel along its upper boundary. Post-perovskite forms in the bottommost part of this region, the D double prime layer. P-waves slow down and S-waves disappear past the bottom of this region, and its top features a P-wave velocity jump from approximately seven to approximately eight kilometers per second. The low velocity zone of the asthenosphere is found in the upper part of this region. It is sandwiched between the Gutenburg discontinuity and the Moho, and this layer's namesake plumes form hotspots. For 10 points, name this layer of the earth between the crust and the core.
[A]: Science

[Q]: This dynasty sent Zhang Qian on exploring missions, and it was confronted by the Rebellion of the Seven States. The Records of A Grand Historian were written by Sima Qian during this dynasty, and after the Battle of Jushi, Emperor Wu forced the Xiongnu to become its tributaries. An interregnum by Wang Mang's Xin dynasty divides this dynasty into [*] "Eastern" and "Western" parts. It was founded by Liu Bang after the Qin dynasty and was followed by the Three Kingdoms period. Challenged by the palace eunuchs and the Daoist Yellow Turban Rebellion, for 10 points, name the Chinese dynasty after which the primary ethnic group of China is named.
[A]:
History