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.

Slogans which became popular in this country included "we don't want to be slaves anymore" and "down with the government, down with the police." This country was home to the underground Christian organization Young Congregation, which helped instigate an event whose nine demands were issued by the Bitterfeld committee, the most influential of the workers' councils which emerged here. People in this country received boxes containing peas, flour, milk, and lard that were known as (*) Eisenhower Packages. After this country announced the New Course program, replacing Constructing Socialism, and including a ten percent increase in production quotas, workers walked out onto Stalin Alley. In this country, where the play The Plebeians Rehearse the Uprising takes place, Soviet tanks were deployed to end a 1953 popular uprising. For 10 points, identify this country which erupted into mass demonstrations against Walter Ulbricht's regime.
History

These objects contain the zone of plastic flow and the zone of brittle flow. They are formed by compressing firn, and parts of them break off by calving. Till is soil left behind by these objects, which also push material to form moraines. Cirques (SERKS) and fjords (FYORDS) are among the landforms due to erosion by these objects. For 10 points, name these moving masses of land ice.
Science

An approximation of it named for Russell uses the TDS value to determine one of its parameters via the Langelier approximation, while one constant that appears in it has units of moles per kilogram to the one half power, according the Bates-Guggenheim convention. Along with Guggenheim, Scatchard and Bronsted improved upon this model by developing the SIT theory, and that model has a better fit than a modification of it named for Davies. This relationship assumes the existence of only long-range interactions, and it was extended to account for Brownian motion by Lars Onsager. It assumes that the solvent is structure-less and that the solution is dilute, and the theory behind it implies that the electrostatic potential falls off exponentially when r is greater than the atomic radius due to screening by counter ions. For 10 points, identify this equation which is used to calculate the activity coefficients, and is named for a German and a Dutch scientist.
Science