Johnson's dictionary changed the lexicographic landscape
Many of the features of his Dictionary - the illustrative
quotations, the numbered multiple senses, the breadth of lexis
and inclusion of common words - were copied from some earlier
text
Encompassing the best of previous innovations, it introduced
some new practices and organised the whole entry in ways which
remained standard for over a century
For these reasons Johnson's Dictionary has become an
iconic text: it seems to represent both a pinnacle of
achievement and a perfection in origin like Homer in poetry or
Shakespeare in English drama
Johnson's Dictionary was the first general monolingual
dictionary to be selective about the words it included, to
include vast numbers of illustrative quotations as a way of
demonstrating meaning and to organise all these features of an
entry in a systematic way