Aimo Cajander
Aimo Kaarlo Cajander (4 April 1879 – 21 January 1943) was the Prime Minister of Finland[1] up to the Winter War.[2] Cajander was born in Uusikaupunki, and became a botanist,[3] a professor of forestry 1911–34; director-general for Finland's Forest and Park Service 1934–1943; Prime Minister in 1922, 1924, and 1937–1939; chairman of the National Progressive Party 1933–1943; and Member of Parliament. Cajander came into politics in 1922 when President Ståhlberg asked him to take office of prime minister. He had not earlier participated actively in politics.
Also recorded as Cajander · Aimo Kaarlo Cajander · A.K. Cajander
Aimo Cajander

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- Born
- 1879. · Uusikaupunki.
- Died
- 1943. · Helsinki.
- Nationality
- Finland and Grand Duchy of Finland.
- Occupation
- botanist, politician, forestry scientist, university teacher, writer, professor, head of government and biologist.
- Education
- University of Helsinki, Ludwig-Maximilians-Universität München and Evo.
- Teachers
- Oswald Kairamo.
- Known for
- The theory of forest types, Ueber Waldtypen, Beiträge zur Kenntniss der Vegetation der Alluvionen des nördlichen Eurasiens. 1 and Die Alluvionen des Unteren Lena-Thales.
- Honours
- honorary doctorate of the University of Natural Resources and Life Sciences, Vienna, Grand Cross of the Order of the Holy Lamb, Grand Cross of the Order of the White Rose of Finland, Grand Cross of the Order of the Lion of Finland, Order of the Three Stars, 1st Class and Knight Grand Cross of the Order of St. Olav.
- Languages
- Finnish, German and Swedish.
VALÉORINE Encyclopedia
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Documentary summary
Aimo Kaarlo Cajander (4 April 1879 – 21 January 1943) was the Prime Minister of Finland[1] up to the Winter War.[2] Cajander was born in Uusikaupunki, and became a botanist,[3] a professor of forestry 1911–34; director-general for Finland's Forest and Park Service 1934–1943; Prime Minister in 1922, 1924, and 1937–1939; chairman of the National Progressive Party 1933–1943; and Member of Parliament. Cajander came into politics in 1922 when President Ståhlberg asked him to take office of prime minister. He had not earlier participated actively in politics.
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Note VALÉORINE
Aimo Cajander (1879–1943) was a biologist, botanist and forestry scientist, among other activities and a national of Finland and the Grand Duchy of Finland. Born in Uusikaupunki, the biologist died in Helsinki.
Aimo Cajander studied at Evo, Ludwig-Maximilians-Universität München and University of Helsinki. The biologist worked for Metsähallitus and University of Helsinki and was a member of Hungarian Academy of Sciences. Aimo Cajander held the positions of defence minister and member of the Parliament of Finland, among others and worked in Helsinki.
Works include The theory of forest types and Ueber Waldtypen. Languages used include Finnish, German and Swedish. The biologist received Grand Cross of the Order of Polonia Restituta, Knight of the Order of Agricultural Merit and Order of the Three Stars, 1st Class, among others.
Composed from admitted, traceable facts · 26 September 2026
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- Identity
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Authority files
wikidata · Q319444 · wikipedia · Aimo Cajander
In this article
Cabinets
Cabinets
Ståhlberg invited him as prime minister second time in January 1924. Cajander's short-lived cabinets were merely caretakers before parliamentary elections. Cajander joined in 1927 National Progressive Party and in 1928 he was chosen as Minister of Defence.[4] Cajander was elected to the Parliament in 1929. When Kyösti Kallio was elected president in 1937, Cajander was asked as the chairman of the National Progressive Party to form majority government. Cajander formed a coalition government of the two largest parties in the parliament - Social Democrats and Agrarian League. Cajander was an idealist who did not yet believe in August 1939 that Soviet Union would attack Finland. Partly for this reason the Finnish Army was forced to fight while inadequately equipped. He died in Helsinki, aged 63. Cajander's name is remembered for "Model Cajander", the fashion of many Finnish soldiers in Winter War: the army was poorly equipped, so mobilized reserves were given a utility belt, an emblem to be attached to the hat — to comply with the Hague Conventions; and a rifle. Otherwise, they had to use their own clothes and equipment.
Aimo Cajander studied at University of Helsinki, Ludwig-Maximilians-Universität München and Evo. Training under Oswald Kairamo is recorded. The recorded working language is Finnish, German and Swedish. Places of work recorded in the authority are Helsinki. Employment is recorded with University of Helsinki and Metsähallitus. Positions recorded include Prime Minister of Finland and member of the Parliament of Finland. Works named in the authority record are The theory of forest types, Ueber Waldtypen and Beiträge zur Kenntniss der Vegetation der Alluvionen des nördlichen Eurasiens. Distinctions recorded are honorary doctorate of the University of Natural Resources and Life Sciences, Vienna, Grand Cross of the Order of the Holy Lamb, Grand Cross of the Order of the White Rose of Finland and Grand Cross of the Order of the Lion of Finland.
• Cajander I Cabinet • Cajander II Cabinet • Cajander III Cabinet
Identity and origins
Identity and origins
The authorities additionally record the headings Cajander, Aimo Kaarlo Cajander and A.K. His recorded languages were Finnish, German and Swedish. He was the child of Karl Alexander Cajander. 2 children are recorded: Aarno Kalela and Erkki Kalela.
Career and activity
Career and activity
He was employed by University of Helsinki and Metsähallitus. Recorded positions include Prime Minister of Finland, member of the Parliament of Finland and defence minister. He belonged to Hungarian Academy of Sciences. He worked at Helsinki.
Work and production
Work and production
Works recorded as notable number 3: The theory of forest types, Ueber Waldtypen and Beiträge zur Kenntniss der Vegetation der Alluvionen des nördlichen Eurasiens. 1, Die Alluvionen des Unteren Lena-Thales.
Identity
Identity
Aimo Cajander is recorded as botanist, politician, forestry scientist, university teacher and writer.

Birth home of A K Cajander, Uusikaupunki, Finland.
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Birth home of A K Cajander, Uusikaupunki, Finland.
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Life and career
Dated record
Life and career
The full dated record · 2 entries
1879
Aimo Cajander born at Uusikaupunki.
1943
Aimo Cajander died at Helsinki.
Places
Named by the record
Places
Only places the record itself states, plotted where the house gazetteer settles their coordinates. Nothing is inferred from a name or a nationality.
Uusikaupunki.
Birth place
Helsinki.
Death place
Recognition and collections
Where the work is held
Recognition and collections
Aimo Cajander received honorary doctorate of the University of Natural Resources and Life Sciences, Vienna, Grand Cross of the Order of the Holy Lamb, Grand Cross of the Order of the White Rose of Finland, Grand Cross of the Order of the Lion of Finland, Order of the Three Stars, 1st Class and Knight Grand Cross of the Order of St.
Documents and archives
Primary material
Documents and archives
reference work
- “Aimo Cajander”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
- Wikidata, structured authority record Q319444: Aimo Cajander
Reputable secondary · Wikidata
scholarly publication
- Aimo Kaarlo Cajander : muistopuhe Suomalaisen tiedeakatemian kokouksessa 12. XI. 1943, Acta Forestalia Fennica, 1949
Scholarly · Crossref registry · 1949
Awards
• Latvia Order of the Three Stars, 1st Class (April 10, 1937)[5] • Finland Order of the Holy Lamb, Grand Cross (1941)[6] • Honorary doctorate of the University of Natural Resources and Life Sciences, Vienna (1924)
Literature
Literature
In memoriam, Acta Forestalia Fennica, 1949
50-vuotisjuhlajulkaisu, Acta Forestalia Fennica, 1929
Muistopuhe Suomalaisen tiedeakatemian kokouksessa 12
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.Finnish government (Valtioneuvosto). Governments in chronological order.
- 2.Valtioneuvosto. Ministerikortisto.
- 3.Cajander's Theory of Forest Types Barrington Moore - Ecology: Vol. 8, No. 1, pp. 135–137.
- 4.Valtioneuvosto.fi. Council of State - Ministers of Defence.
- 5.Ar Triju zvaigžņu ordeni apbalvoto 22. saraksts. Valdības Vēstnesis. 107. 1. 1937-05-14.
- 6.Pyhän Karitsan suurristi min. Kukkoselle ja pääjoht. Cajanderille. Helsingin Sanomat. 10. 12 January 1941.
References
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
scholarly publication
Aimo Kaarlo Cajander : muistopuhe Suomalaisen tiedeakatemian kokouksessa 12. XI. 1943, Acta Forestalia Fennica, 1949Crossref registry
Verifiedreference work
Partially resolvedreference work
Partially resolved
Further particulars
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Further particulars
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Aimo Cajander studied at University of Helsinki, Ludwig-Maximilians-Universität München and Evo. The record notes the qualifications Master of Arts and Doctor of Philosophy. He trained under Oswald Kairamo.
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