Thank you for your ancient history time-lines Gromit.
I can only talk of 'in my life time'
And the only one is 1936 - Battle of Cable Street, (London, England)
This is reminiscent to the 'Lefts' attitude towards the EDL's marches, of today.
This was the communists attacking a Legal march by Oswald Mosley, who incidentally was supported by the police.
It was reported the demonstrators fought with sticks, rocks, chair legs and other improvised weapons. Rubbish, rotten vegetables and the contents of chamber pots were thrown at the police by women in houses along the street.
Mosley agreed to abandon the march to prevent bloodshed. Several members of the police were kidnapped by demonstrators. Around 100 people were injured including police, women and children.
No mention of police cars set on fire, buses set on fire, buildings set on fire, shops looted, ambulance not allowed entry etc.though.
Ah, those balmy pre-multi immigration days.