http://www.aljazeera.com/news/2017/11/million-mask-march-guy-fawkes-171105103912124.html

"..What is the Million Mask March?

Associated with the hacktivist group Anonymous, Million Mask March protesters worldwide have rallied every year since 2013 against militarisation and police brutality and for self-governance.

In a 27-minute message posted to YouTube ahead of the 2017 event, Anonymous said: "Every November 5, the Million Mask March is a sign that humanity around the world is crying out for change."

Protesters usually wear masks depicting Guy Fawkes.
Who was Guy Fawkes?

Guy Fawkes, also known as Guido Fawkes, was a member of the English Catholics who planned the Gunpowder Plot of 1605.

Guy Fawkes Night is celebrated across Britain, with revellers setting off fireworks and burning a Guy Fawkes effigy on a bonfire. The festival, which had Protestant spirit, started as a way to give thanks because the Gunpowder Plot failed, but later fuelled anti-Catholic bigotry.."

Never knew the significance of the mask. Haha, Cathy Licks.

800 cities will have this event today.