Brianilest large amounts of points what did southerns begin to build along Charleston harbor after Anderson and his men retreated to fort sumter?

Plz small sentence and what they built

In defiance of the Federal presence in Charleston Harbor, the Southerners rebuilt batteries and constructed new fortifications on Sullivan's Island, on Morris Island, and on James Island. When Anderson and his troops first entered Fort Sumter, the fort was far from complete.

Explanation:

herodotus taught this. herodotus was an ancient greek historian who was born in halicarnassus in the persian empire. he is known for having written the book the histories, a detailed record of his "inquiry" on the origins of the greco-persian wars.