Protesters at the Lincoln Memorial

4048 × 2703

Martin Luther King Jr. speaking at rally

2032 × 2950

Protest at the Berlin Wall

1082 × 736

Prohibition protest march

1440 × 902

Greek funeral procession

1638 × 1164

Boston Tea Party

1003 × 605

People on the Berlin Wall

1754 × 1200

Suffragette arrest in London

1772 × 1489

People on the Berlin Wall

3000 × 1995

Protester offers flowers to soldiers

1029 × 776

Protest sign for workers solidarity

2592 × 3872

Je Suis Charlie memorial

3500 × 2278

Canada on Strike Protest

1920 × 1200

Joe Hill quote on preaching

1600 × 1200

fist raised in solidarity

1275 × 1750

People holding a large EU flag

2464 × 1648

red fist symbol

1440 × 900

Farm workers in a field

950 × 703

WGA strike protest

2048 × 1536

USS Arizona Memorial in Hawaii

1920 × 1200