Dada used nonsense, collage, performance and readymades to sabotage bourgeois expectations. Surrealism used automatism, dream imagery and unexpected juxtapositions.
Women and artists outside Paris were crucial to Surrealism, even when its official histories centered male leaders.
How to look
Expect rupture. Many avant-gardes broke perspective, natural color, stable narrative and traditional craft hierarchies to match a fractured modern world.
Ask what system replaced realism: collage, abstraction, chance, dream logic, machine geometry, manifesto or spiritual structure.