"An American Dictionary of the English Language" by Noah Webster, 1828, Volume 1

Noah Webster wrote the first dictionary of American English. It was a radical attempt to foster a uniform language for the United States. Webster's first edition in 1828 contained about 70,000 entries -- some 12,000 more than had appeared in earlier vocabulary lists. Webster added many technical and scientific terms, included common Americanisms, and suggested new ways of spelling and pronouncing words.