Passage: In June 1297, the French invaded Flanders and gained some rapid successes. The English, under Edward I, withdrew to face a war with Scotland and the Flemish and French signed a temporary armistice in 1297, the Truce of Sint-Baafs-Vijve, which halted the conflict. In January 1300, when the truce expired, the French invaded Flanders again and by May were in total control of the county. Guy of Dampierre was imprisoned and Philip himself toured Flanders making administrative changes.After Philip left Flanders, unrest broke out again in the Flemish city of Bruges directed against the French governor of Flanders, Jacques de Châtillon. On 18 May 1302, rebellious citizens who had fled Bruges returned to the city and murdered every Frenchman they could find, an act known as the Bruges Matins. With Guy of Dampierre still imprisoned, command of the rebellion was taken by John and Guy of Namur. Most of the towns of the County of Flanders agreed to join the Bruges rebellion except for the city of Ghent which refused to take part. Most of the Flemish nobility also took the French side, fearful of what had become an attempt to take power by the lower classes.

Question: When did the Bruges Matins happen?
18 May 1302