51 years ago today...

...British soldiers shot 26 unarmed civilians during a protest march in the Bogside area of Derry.

https://en.wikipedia.org/wiki/Bloody_Sunday_(1972)

Fourteen people died: thirteen were killed outright, while the death of another man four months later was attributed to his injuries. Many of the victims were shot while fleeing from the soldiers, and some were shot while trying to help the wounded....Other protesters were injured by shrapnel, rubber bullets, or batons, two were run down by British Army vehicles, and some were beaten....The march had been organised by the Northern Ireland Civil Rights Association (NICRA) to protest against internment without trial. The soldiers were from the 1st Battalion of the Parachute Regiment ( "1 Para" ), the same battalion implicated in the Ballymurphy massacre several months before.

https://en.wikipedia.org/wiki/Ballymurphy_massacre