Original sentence: Freshfields is the oldest firm within the Magic Circle, and is the oldest international law firm in the world.Headquartered in London, it is a member of the Magic Circle of elite British law firms.Its origins are traced to the early 18th century, when it was appointed solicitor to the Bank of England, which it continues to advise today
Edited sentence: Freshfields is not only the oldest firm within the Magic Circle, but also the oldest international law firm in the world.Headquartered in London, it is a member of the Magic Circle of elite British law firms that outperform the rest of the London and the world's markets on profitability.Its origins can be traced back to the early 18th century, when it was appointed solicitor to the Bank of England, which it continues to advise today