Here’s a funny quote from a site that talks about dice towers:
“Historically, the Ancient Romans used dice towers to control their dice, this being a natural outgrowth of the Roman penchant for building siege towers to control the Greeks, etc. Somewhere along the line – probably around the invention of gunpowder – sappers came into favor and dice towers fell out of fashion. […] Dice towers have the added advantage of forcing a minimum level of randomization to the throw of each die, which is a very good thing if you’ve ever gamed with one of those guys who likes to let the die slide off the edge of his palm and cry out, “Another six!” (This is a technique that the ancient Romans called “signor cheatypants”.)”