On that night the skies were clear, and the moonlight was bright. Over the course of almost 7 hours, 505 German bombers followed the path of the Thames to drop more than 700 tons of high explosive and 86,000 incendiaries across London. The raid led to the highest nightly casualty figure recorded: 1,364 killed and 1,616 seriously wounded.
The Houses of Parliament were hit with several incendiary bombs throughout the night, and fire took hold. As a fire in the Common's Chamber blazed, the roof the medieval Westminster Hall caught alight. The decision was taken to save the ancient Hall, and the Common's Chamber was destroyed. Four people lost their lives at Parliament that night.