# Content This data set consists of 20000 messages taken from 20 Usenet newsgroups. One thousand Usenet articles were taken from each of the following 20 newsgroups. - alt.atheism - comp.graphics - comp.os.ms-windows.misc - comp.sys.ibm.pc.hardware - comp.sys.mac.hardware - comp.windows.x - misc.forsale - rec.autos - rec.motorcycles - rec.sport.baseball - rec.sport.hockey - sci.crypt - sci.electronics - sci.med - sci.space - soc.religion.christian - talk.politics.guns - talk.politics.mideast - talk.politics.misc - talk.religion.misc Approximately 4% of the articles are crossposted. The articles are typical postings. # Source [Twenty Newsgroups Data Set - - UCI](https://archive.ics.uci.edu/ml/datasets/Twenty+Newsgroups) **Original Owner and Donor** Tom Mitchell School of Computer Science Carnegie Mellon University tom.mitchell@cmu.edu