What major historical events do you remember?

The two main major historical events that I remember are:

1. 9/11 Twin Tower attacks.

2. The COVID -19 Pandemic.

An event I would not remember, but a catastrophic major event that occurred here in Wales on 21st October 1966: The Aberfan Disaster.

A disaster that happened at Merthyr Vale Colliery. 150,000 tonnes of coal waste, mud and debris collapsed and slid down the mountain side. The landslide destroyed many homes and buried the village junior school.

144 lives were lost; 116 children and 28 adults. It killed 50% of the towns children.

The disaster became one of the worst coal mining accidents in the UK.