But two distinct periods saw a significant rise in the dedication of monuments and other symbols.
The first began around 1900, amid the period in which states were enacting Jim Crow laws to disenfranchise the newly freed African Americans and re-segregate society. This spike lasted well into the 1920s, a period that saw a dramatic resurgence of the Ku Klux Klan, which had been born in the immediate aftermath of the Civil War.
The second spike began in the early 1950s and lasted through the 1960s, as the civil rights movement led to a backlash among segregationists. These two periods also coincided with the 50th and 100th anniversaries of the Civil War.