Detailed Instructions: 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: This term has been used to refer to the slaughter of men under Vortigern by Anglo-Saxon mercernaries, as well as for the 1962 sacking of seven Cabinet members by British Prime Minister Harold McMillan. The most famous event of this name was aimed partly as a reaction the Marburg speech of vice-Chancellor Franz von Papen. Kurt von Schleicher and Gustav Ritter von Kahr were other enemies of this events instigator killed by the Gestapo and the SS during it. Centering on the removal of Ernst Rohm and the SA, for 10 points, give the name of this June 1934 purge of the Nazi party.
A:
History