All That's Interesting on MSN

What was the Gatling gun? The history of one of the world’s first rapid-fire weapons

Invented in 1861, the Gatling gun was one of history's first rapid-fire weapons. It was operated with a hand crank that ...

The Greatest Guns in American History (That You’ve Mostly Never Heard Of)

This week, as we celebrate the 4th of July in America’s 250th year as a country, it’s clear there’s a lot more interest and conversation about American history. That’s why ...