Prohibition, income tax, women's suffrige, and all that.

[milktree]

There's a 38 minute podcast here:

http://www.econtalk.org/archives/2010/06/okrent_on_prohi.html

you should listen to.

It's really interesting. It covers the intertwined-ness of a bunch of stuff I previously thought were separate events.

Of course, there are no "separate events" in any one location. It's all intertwined.