May 1968 events in France
On Monday, 6 May, the national student union, the Union nationale des étudiants de France, as well as the union of university teachers, marched to protest against the police invasion of the Sorbonne. More than 20,000 students, teachers, and supporters marched towards the Sorbonne, which was still sealed off by the police, which charged and hit people with their batons. Most of the crowd left, but some began to make barricades out of whatever was at hand. Some people threw stones and forced the police to retreat. The police then used tear gas and charged the crowd again. Hundreds of more students were arrested.