September 17, 2011: The first OWS gathering. About 5,000 people gather in lower Manhattan, waving signs, chanting slogans and beating drums, before settling in at Zuccotti Park.

Photograph: Steven Greaves/Demotix/Corbis

September 26, 2011: A video showing a senior police official using pepper spray on two women in New York circulates online. Protesters clash with police and the NYPD makes nearly 80 arrests.

Photograph: Tina Fineberg/AP

October 1, 2011: The NYPD confronts Occupy Wall Street protesters as they try to cross the Brooklyn Bridge. A reported 700 people are arrested.

Photograph: Jessica Rinaldi/Reuters

October 11, 2011: Boston police break up a gathering of Occupy Boston protesters Rose Kennedy Greenway and arrest nearly 100 people.

Photograph: Adam Hunger/Reuters

October 13, 2011: Occupy protesters begin their own clean-up of Zuccotti Park after Michael Bloomberg, New York's mayor, deems it unsanitary and Brookfield Properties imposes limitations on its use.

Photograph: Bebeto Matthews/AP

October 17, 2011: The Occupy movement marks its one-month anniversary with a march to Times Square. Movements around the world march in solidarity.

Photograph: Eduardo Munoz/Reuters

October 25, 2011: Police move Occupy Oakland out of Frank H Ogawa Plaza. Scott Olsen, a US military veteran, is seriously injured, allegedly hit by police projectile.

Photograph: screengrab via YouTube

November 3, 2011: Occupy Oakland joins forces with unions for a general strike. The protest shuts down the city's port (one of America's busiest).

Photograph: James Fassinger

November 15, 2011: After 1am, the NYPD swoops in on Zuccotti Park evicting Occupy Wall Street protesters and disposing of their belongings.

Photograph: Stan Honda/AFP/Getty Images

November 16, 2011: Delori Rainey, 84, captures the public's imagination when she is pepper-sprayed after Occupy Seattle protesters clash with police.

Photograph: Joshua Trujillo/AP

November 17, 2011: The International Day of Action inspires Ocuupy groups to protest across America.

Photograph: Mike Segar/Reuters

November 20, 2011: At UC, Davis, a police officer pepper-sprays a group of students taking part in a sit-in. The officer has since been placed on leave.

Photograph: Wayne Tilcock/AP

December 17, 2011: Calling it the "Re-Occupy" protest, hundreds of protesters take over a vacant lot near Duarte Square in NYC.

Photograph: Brendan Mcdermid/Reuters

January 28, 2012: In one of the most turbulent days in the movement's history, Oakland police arrest about 300 Occupy Oakland protesters.

Photograph: Stephen Lam/Reuters

• Now that you've revisited some Occupy moments, we want to hear from you. Were you there? What was it like? Tell us in the comments.