Demonstrators involved with Anonymous, a loose collective of online "hacktivists," will gather on the National Mall in Washington, D.C. on Nov. 5 to march for a vast, nearly innumerable number of causes and issues.

Flyers began appearing around downtown D.C. over the weekend advertising the "Million Mask March," which will take place on Guy Fawkes Day.

Anonymous members, when they appear in public, are known for donning masks of Guy Fawkes, who unsuccessfully tried to blow up the England’s House of Lords on Nov. 5, 1605, and restore Catholicism to England.

The group supports leakers of government secrets, such as Julian Assange, Bradley Manning, and Edward Snowden. It was also closely allied with the now-moribund Occupy movement.

Anonymous hackers often target large governments and companies who oppose their interests with malicious cyber attacks.

According to the event’s Facebook page, the march is being held "to remind this world what it has forgotten, that fairness, justice, and freedom are more than just words."

"There are quite a few things on the list of ‘topics’ for this event," the page read. "This will include but not limited to Government (this is a big gray area), Reform, Education, Pharmaceutical companies pushing meds, War, Constitutional rights, Freedom, Unity, Drug abuse, Respect for all of mankind, Corruption, Food – GMO's, Nutrition and health, Children, Violence worldwide, Waking the people. There many more things, too many to list, but just to name a few. FREE BRADLEY MANNING!"

Currently, more than 13,000 people have RSVP’d for the event.

Hundreds of other Anonymous events are scheduled the same day as part of the "Million Mask March."

The website for the Million Mask March also includes a link to revolutionary Anonymous poetry.

"How did they get rich / I’ll tell you the way," an Anonymous poet writes. "By being a bitch / or stealing the pay."

Or an excerpt from a poem, titled "Julian Assange."