reasons why wikipedia is not a good source
Wikipedia:Wikipedia is not a reliable source Wikipedia is not a reliable source. Wikipedia can be edited by anyone at any time. This means that any information it contains at any particular time could be vandalism. Biographies of living persons are especially vulnerable to this issue. Some edits on Wikipedia that are in error are sometimes fixed, however because Wikipedia cannot monitor contributions made by millions of users, there are many errors that remain unnoticed for days, weeks, months, and even years. Therefore, Wikipedia should not be considered a source for 'fact-checking'.
Oxford English Dictionary Work began on the dictionary in 1857, but it was not until 1884 that it began to be published in unbound fascicles as work continued on the project, under the name of A New English Dictionary on Historical Principles; Founded Mainly on the Materials Collected by The Philological Society. In 1895, the title The Oxford English Dictionary (OED) was first used unofficially on the covers of the series, and in 1928 the full dictionary was republished in ten bound volumes. In 1933, the title The Oxford English Dictionary fully replaced the former name in all occurrences in its reprinting as twelve volumes with a one-volume supplement. More supplements came over the years until 1989, when the second edition was published.[1] Since 2000, a third edition of the dictionary has been underway, approximately half of which is now complete.[1]