State · 1971 – present
Sierra Leone
A state of 1971 – present — 55 years, still standing in sub-Saharan Africa. It replaced Sierra Leone (1961–1971). The atlas records 18 things within it — wars and battles 2 · famine and plague 1 · natural disasters 1 · people 14. Its line of rulers holds 13 people, 7 with dated terms.
- Still standing: the span runs to the year of the build, 2026.
For the full story, the article on Wikipedia (CC BY-SA 4.0); this page holds what the record says of the state.
- Stood
- 55 years
- and still standing
- Rulers
- 13
- the President of Sierra Leone
- Most ground
- 74,500 km²
- in 1961
- Within it
- 18
- recorded rows
- Symbols
- 2
- on record, with years
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
- Sierra Leone (1961–1971) · replaces · 1961 – 1971
Rulers
The line of President of Sierra Leone - the office this state names as its head of state.
| Ruler | Reign | Length | How it ended · source | To the ruler before |
|---|---|---|---|---|
| Siaka Stevens | 1971 – 1985 | 14 years | resigned or stood down, the article saysread from the ruler's own article | |
| Joseph Saidu Momoh | 1985 – 1992 | 7 years | deposed, the article saysread from the ruler's own article | |
| Valentine Strasser | 1992 – 1996 | 4 years | ending not on record | |
| Ahmad Tejan Kabbah | 1996 – 1997 | 1 year | left office aliveread off the dates alone | |
| Johnny Paul Koroma | 1997 – 1998 | 1 year | killed, the article saysread from the ruler's own article | |
| Ahmad Tejan Kabbah | 1998 – 2007 | 9 years | resigned or stood down, the article saysread from the ruler's own article | |
| Ernest Bai Koroma | 2007 – 2018 | 11 years | ending not on record | |
| Julius Maada Bio | 2018 – in office | in office since 2018 | still in office |
13 rulers, 7 with terms dated as terms, covering 1971 – 2018. Only 47 years of the line are dated - too short for a median. 4 of 7 handovers irregular - a killing, a deposition, a rival claimant, a rising or a coup beside it. The violent-handover count is withheld: power changed hands so often that any rising falls beside one (exposure 0.71, limit 0.6). A blank in the last column means no kin on record, which is coverage, never “unrelated”.
Heads of government
The line of Chief Minister of Sierra Leone, drawn and never measured: a cabinet is not a reign.
| David J. Francis | 2018 – 2021 |
| Jacob Jusu Saffa | 2021 – 2023 |
| David Sengeh | 2023 – … |
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.
74,500 km² in 1971, 74,500 km² in 2021; at its largest 74,500 km² in 1971. 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, from 1960Coat of arms of Sierra Leone · CC BY-SA 3.0 · Lion héraldique.svg - Bluebear2 Heraldique meuble lion passant.svg - Rinaldum , S@m , Zig… 
flag, from 1961Flag of Sierra Leone · Public domain
What happened within it, by century
Every row the atlas hosts under this state, by the century it began in: wars and battles in red, risings, regime changes and massacres beside them, everything else in grey. A tall bar is a century the record is full for, which is partly a fact about Wikipedia.
1900 – 199915 rows · 1 wars and battles
- Ernest Bai Koroma · ruler · 1953 – present
- Julius Maada Bio · ruler · 1964 – present
- Ahmad Tejan Kabbah · ruler · 1932 – 2014
- Sierra Leone Civil War · war · 1991 – 2002
- Siaka Stevens · ruler · 1905 – 1988
- Joseph Saidu Momoh · ruler · 1937 – 2003
- Valentine Strasser · ruler · 1967 – present
- Johnny Paul Koroma · ruler · 1960 – 2003
and 7 more in the atlas.
2000 – 20993 rows · 1 wars and battles
- COVID-19 pandemic in Sierra Leone · plague · 2020
- 2017 Sierra Leone mudslides · disaster · 2017
- Operation Barras · battle · 2000
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 stood55 years
stood longer than 35% of 3,187 states with a recorded end or still standing.
- The most ground it held74,500 km²
held more ground at its peak than 39% of 1,465 states with a border in Cliopatria.
- Wars recorded per century1.0
had more wars on record per century than 94% of 3,187 states, counting the wars the atlas hosts under each.
- Rulers on record13
has more rulers on record than 85% of 1,968 states with a line of rulers.
What led to it, and what came of it
The investigation's own picture: 3 causes the record names and 0 results, 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.
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, 1961 – 2036, with everything that stood beside it.
- On the map in 1961, live: scrub the year and watch its borders move.
- Investigate it: what led to it, what came of it, and its succession analysed.
Wikidata Q1044 (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.