The 50s was a great decade. Everybody was horribly fatigued from WW II and wanted global and domestic peace. The McCarthy era tamped down the communist radicals that had been active from 1919 to just before the war and most Americans thought global communism was a real threat in the 50s.
Then the race riots of the 60s started with the Harlem Riot of 1964, which began on July 16, 1964. The Harlem riot resulted in one death, over 100 injuries, and significant property damage, with hundreds of arrests. The Harlem Riot is often seen as a precursor to the wave of urban uprisings that followed throughout the 1960s, including the Watts Riot in 1965 and the Detroit Riot in 1967.
The Kerner Commission (established by President Lyndon B. Johnson in 1967 to investigate the causes of these riots) identified more than 150 riots or major disorders between 1965 and 1968, with 164 occurring in the first nine months of 1967 alone.
A broader estimate by economists William J. Collins and Robert A. Margo suggests there were over 750 riots between 1964 and 1971, with the majority concentrated in the 1960s.
After the race riots quieted down, the Weathermen radicals got launched and took over the leadership of anarchy. That ramped up to the Vietnam riots, the Symbioses Liberation Army and other organizations.
True domestic tranquility in the USA seems fleeting and rare.
Rare, because we are far too tolerant of existential threats to the Constitution. We should be far harsher in dealing with anarchists and communists.
The day is coming.
BRAVO...great, FACTUAL comment; well done!