Result - Escalator
In 1961 in Paris, the French police attacked a peaceful but illegal demonstration of around 30,000 people, killing between 40 and 200, who were protesting about what?
What machine, called the world's first working programmable, fully automatic computing machine, was completed and demonstrated in 1941 and destroyed in 1943?
Which building on the Île de la Cité in Paris took 300 years to build from 1163, and was one of the first to have flying buttresses?
