None.

In the second episode around the 35 minute mark a man's bare bottom is shown.

Moderate violence. Nothing too grapghic.

A soldier is shot during the Spanish-American War scenes in the throat;. He gargles with blood coming from his mouth. This may disturb some viewers.

Some Spanish Soldiers are killed with a little bit of blood and there are bullet wounds. Nothing too severe.

There is a brawl amongst striking coal miners and the police/security, but it is not very bloody.

At least 1 use of Hell. There might be more profanity used but I don't remember hearing any.

Drinking and Smoking. No real drunkenness.