What is the importance of Samuel dictionary in history English language?

There seems to be a misunderstanding. There is no dictionary known as "Samuel dictionary" in the history of the English language.

Perhaps you are thinking of a different dictionary or a different figure entirely.

Could you please clarify your question? For example, are you perhaps thinking of:

* Samuel Johnson's Dictionary: This was a monumental work published in 1755, considered one of the most important dictionaries ever created for the English language.

* A different dictionary altogether: Perhaps you are thinking of a dictionary by another author named Samuel, or a dictionary with a similar title.

Let me know if you can provide more details so I can help you better!