# Ni Una Menos: the first mass mobilization

> A May 11 call helped mobilise Argentina’s June 3, 2015 protests against femicide.

- Owner: Ni Una Menos collective
- Kind: Activity
- Sector: Politics & civic
- Seed date: 2015-05-11
- Milestone date: 2015-06-03
- Date basis: Documented milestone; not a measured attention peak.
- Spread Score: 10 (Niche, provisional), v1.2
- Mechanics: Identity badge, Platform jump, Press loop

## Summary

A journalist’s public call became part of a wider organising effort against femicide. The shared Ni Una Menos slogan travelled from social posts into nationwide demonstrations on June 3, alongside a manifesto of specific demands.

## Timeline

- 2015-05-11 — Marcela Ojeda (X) — Called on women in public life to speak out against killings of women.
- 2015-05-12 — Marcela Ojeda (X) — Offered two reusable flyers and asked people to circulate them, following the invitation with time and place.
- 2015-06-03 — Milestone: Ni Una Menos participants (Press) — Gathered outside Argentina’s Congress, with parallel protests across the country.

The full timeline, metrics and sources are on the case page, or via the Pro API (https://howitspread.com/developers).

Canonical URL: https://howitspread.com/cases/ni-una-menos-first-mobilization

Cite as: How It Spread (2026). “Ni Una Menos: the first mass mobilization.” Case HIS-01096. Spread Score v1.2: 10/100. Updated 2026-10-17. https://howitspread.com/id/HIS-01096