All the wars in his old country
It was the "(1) location on waterways" that was a geographic factor that enabled the cities of <span>Nanjing and Mogadishu to develop into powerful trading centers.</span>
Lexington and Concord<span>, Massachusetts</span>
I guess check the 15th Amendment?
As the Cold War came to a close, the "United States" emerged as the only superpower, since previous the US and the USSR had been the main superpowers after WWII.