Abia State · Crisis deep dive

Colonial era (1900–1959)

1929 Aba Women's War (Ogu Umunwanyi) — women across Aba, Owerri, Calabar provinces rose against colonial taxation and the warrant chief system; 50+ killed by British forcesImpunity Loop

Methodology

Tier 1 · primary

Courts. Gazettes. National archives.

Tier 2 · corroborating

OCCRP. HRW. BudgIT. TheCable.

Tier 4 · tertiary, flagged

Wikipedia only where primary is pending. Always labelled.