Why were monuments and memorials built in the South during the late 19th and early 20th centuries? A better question would be why so many monuments and memorials were built across the entire United States in the late 19th and early 20th centuries. Confederate memorials need to be viewed within the context of American–not just Southern–history at the time of their erection and dedication. Many of the most iconic American memorials were built and dedicated at this time, even in the North. Get your real history in Episode 104 of The Brion McClanahan Show.