The reason why the majority of police uniforms in the U.S. are blue is a result of the civil war. After the war had ended, there was a surplus of blue uniforms which got repurposed for police officers. The color became associated with policing.
When the Six Flags Over Texas theme park opened in 1961, it had a section dedicated to the Confederacy where actors would hunt through the crowd for Union “spies” and “execute” them by firing squad, and where boys and girls could sign up to defend the South as soldiers and nurses.
During the Battle of the Wilderness, a fistfight between a Union and Confederate soldier caused a ceasefire, as both sides stopped fighting to watch the scuffle. The Union soldier lost and was taken prisoner. The battle then resumed.
In the civil war, the commander of the Union “lightning brigade” personally took out a loan to buy his soldiers advanced new repeating rifles because the government would not supply them. Using the firepower advantage afforded by the new rifles, his brigade proved extremely effective in combat.
The Civil War prison camp Elmira had two observation towers constructed for onlookers. Citizens paid 15 cents to look at the inmates. Concession stands by the towers sold peanuts, cakes, and lemonade while the men inside starved.
The last surviving Civil War veteran lived long enough to have seen television.
The Kingdom of Hawaii declared itself neutral during the American Civil War. Despite that decree, many native Hawaiians enlisted anyway.
In 1861 a slave took over a confederate ship and delivered it to the Union. He was then given the ship to command during the Civil War.
There are currently living children of Civil War Veterans 150 years after the war, who can still recall their fathers’ war stories.