Pronunciation is the other side of lexicography that has recorded great changes since historical times. However, attention on pronunciation came later in relation to the meanings of words. The first pronunciation dictionary was published in 1780 by one Thomas Sheridan, the grandfather of the major artist, dramatist, and writer. Later, an actor named John Walker would publish a pronunciation dictionary called' The Critical Pronouncing Dictionary and Expositor of the English Language. ? The pronunciations in this dictionary would later be incorporated in Johnson's dictionary due to the vagueness of Walker's dictionary. This was a rather instrumental step in the story of the dictionary as it is called today.