Noah Webster published the American Dictionary of the English Language on this day in 1828.
Webster published a smaller edition, entitled A Compendious Dictionary of the English Language in 1806. After publishing this edition, he set out to create An American Dictionary of the English Language, and learned 25 languages and created 70,000 entries to do so.
These days, the Merriam-Webster Dictionaries are available in print, CD and online formats.
For more information about Webster and his contribution to the English language, read more here.