Is that cool or what? A chain big enough to stop ships! Sounds like something out of a pirate movie! And the story gets even more fascinating. This chain was the reason Benedict Arnold was discovered as a traitor. He was found out by a female spy named Sally Townsend, who's brother was a member of George Washington's Culper Ring of spies. (Read about the Culper Ring on Wiki..wow, history has such good stories!)
So, I started thinking, how is something like this made? I know how to make chain small enough to wear, but never thought about how super large chain is made. I realized chain used on ships must be made the same way.
Well, it takes alot of muscle and teamwork. Check out this antique video of chain and anchor making. I find it fascinating.