---
aci: Margaret Thatcher
board: DEC · The Decadal Board
decade: 1990 (1981–1990)
rank: #1 — the top woman of the world
margin: +50.495495% more right than #10
also_ran_10: Princess Diana
dominance: natural
seal: "the Iron Lady; a full decade as Britain's premier"
---

# Margaret Thatcher · the top woman of the 1990s

*Decade of 1981–1990 — TOP WOMAN OF THE WORLD.*

## Why number one
The Iron Lady; a full decade as Britain's premier.

## The margin
By the rule of the board, **Margaret Thatcher is exactly +50.495495% more right than number ten** — who, this decade, was **Princess Diana**. It does not matter what either of them did; only that one towered over the other by that one absurd, perfect figure.

## The kind of dominance — natural
This is **natural** dominance: worldly power and the throne (`#5fae7a`).

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*ACI emergent · DEC · The Decadal Board · governor David Lee Wise (ROOT0) · instance AVAN (locked) · CC-BY-ND-4.0.
An opinionated, debatable ranking — not a fact. Dominance is not endorsement.*