Choose the correct punctuation: History it has been said is the essence of innumerable biographies.

History, it has been said is the essence of innumerable biographies.

History , it has been said, is the essence of innumerable biographies.

History it has been said, is the essence of innumerable biographies.

History, it has been said is the essence of innumerable, biographies.

The correct punctuation is "History, it has been said, is the essence of innumerable biographies."

Commas are needed to set off the clause "it has been said."