Importantly, unlike the other existing dictionaries, Samuel had created a plan on how to organise the words methodically.
In fact, it was the most advanced dictionary of its time and was used by famous authors such as Charles Dickens, Thomas Hardy and Oscar Wilde. It explained complex definitions of 40,000 words and took eight years to finish. Introduced by The Royal Mint in 2005, the Dictionary 50p coin was released to celebrate the 250th anniversary of Samuel Johnson's Dictionary - one of the most influential pieces of scholarship in the history of the English language.