Linked from
The 14 pages that link to Salt March, each with the reason it gives.
PacifismBroader topic: It exemplified mass nonviolent resistance against imperial rule.
BoycottRelated: It paired civil disobedience with refusal to accept a colonial monopoly.
SaltBroader topic: The Salt March turned the colonial salt monopoly into a symbol of resistance.
ProtestBroader topic: It turned a widely felt grievance into a visible act of civil disobedience.