20. Brooklyn Bridge Built During the Battle of Little Bighorn (1876)
This is an interesting piece of history we’re sure you’ll be intrigued by. According to historians, the Brooklyn Bridge was under construction at the same time as “Custer’s Last Stand” at the Battle of Little Bighorn in 1876. While the bridge would take another six years to complete, it’s interesting that the first steel-wire suspension bridge in existence was being built when Custer was defeated by Crazy Horse.