State · 1821 – 1822

Protectorate of San Martín

A state of 1821 – 1822 — one year in the Americas and Oceania. It followed Viceroyalty of Peru. It was followed by Peru. Its line of rulers holds 1 person.

For the full story, the article on Wikipedia (CC BY-SA 4.0); this page holds what the record says of the state.

Stood: one year; 1821 – 1822
Rulers: 1; the President of Peru
Most ground: 1.48 million km²; in 1822
Symbols: 2; on record, with years

Map: Protectorate of San Martín in 1822, its borders in gold among its neighbours — Protectorate of San Martín in 1822, when it held the most ground the borders dataset draws for it: 1.48 million km². Its neighbours wear their tints, as on the atlas's own map. Borders from Cliopatria (CC BY 4.0), coast and rivers from Natural Earth, cities from Reba, Reitsma & Seto 2016 (CC BY 4.0), each city under the name it bore that year.

Where it sits in time

Five thousand years, 3000 BCE to 2026; the state in gold, what it replaced or followed and what replaced or followed it in grey.

Before and after

The states the record files it as replacing or following, and those that replaced or followed it - Wikidata's own statements, each read from this state's side.

Before it

Viceroyalty of Peru · follows

After it

Peru · followed by · 1822 – present

Rulers

The line of President of Peru.

left alive by a regular road

1 terms are shared from [object Object].

Ruler	Reign	Length	How it ended · source	To the ruler before
José de San Martín · from the line of Peru	1821 – 1822	1 year	left office aliveread off the dates alone

1 rulers, 1 with terms dated as terms, covering 1821 – 1822. Only 1 years of the line are dated - too short for a median. A blank in the last column means no kin on record, which is coverage, never “unrelated”.

Ground held, by year

km² inside its borders as the borders dataset draws them, measured on an equal-area grid; a step series, held between the years the dataset maps.

1.48 million km² in 1822. Cliopatria, CC BY 4.0.

Flags and arms, in order

Each symbol with the years its own statement gives; the timeline flies the one of the year on screen.

coat of arms, undatedCoat of arms of Peru (1821-1825) · CC BY-SA 4.0 · This vector image includes elements that have been taken or adapted from this file:
flag, undatedFlag of Peru (1821–1822) · Public domain

Among all states

Each measure against the states that carry it, never against all of them: a bar is the share of those states below this one.

How long it stood1 years
stood longer than 3% of 3,187 states with a recorded end or still standing.
The most ground it held1,477,300 km²
held more ground at its peak than 88% of 1,465 states with a border in Cliopatria.
Wars recorded per centurynone
had more wars on record per century than 44% of 3,187 states, counting the wars the atlas hosts under each.
Rulers on record1
has more rulers on record than 13% of 1,968 states with a line of rulers.

What led to it, and what came of it

The investigation's own picture: 1 cause the record names and 1 result, the strongest six of each at their own years, joined to the state by the kind of claim - a recorded statement solid, the article's sentence dashed, a theory dash-dot.

linked

Open the investigation: every row with its evidence, the conditions at the time, the theories condition by condition, and the succession analysed.

Open in the atlas

On the timeline, 1811 – 1832, with everything that stood beside it.
On the map in 1822, live: scrub the year and watch its borders move.
Investigate it: what led to it, what came of it, and its succession analysed.

Wikidata Q7251405 (CC0) · borders Cliopatria, CC BY 4.0 · coast and rivers Natural Earth · symbols from Wikimedia Commons, each credited above · data built 2026-10-06 · Pastlas v2.9.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.