# Tõnis Kasvand

> Estonian computer scientist (1930-2025)

**Wikidata**: [Q135218922](https://www.wikidata.org/wiki/Q135218922)  
**Source**: https://4ort.xyz/entity/tonis-kasvand

## Summary
Tõnis Kasvand was an Estonian computer scientist (1930–2025) known as a figure in Estonian computing and recorded in the Biographical lexicon of Estonian science. He was born in Tallinn and is identified in source records as an Estonian-speaking male scientist.

## Biography
- Born: 1930-06-22, Tallinn
- Nationality: Estonia
- Known for: Identified as an Estonian computer scientist in reference sources (specific works not listed in the provided source)
- Field(s): Computer science
- Languages spoken, written or signed: Estonian
- Described by source: Biographical lexicon of Estonian science
- Died: 2025

## Contributions
The provided source material lists Tõnis Kasvand as an Estonian computer scientist and records his life dates (1930–2025) and place of birth (Tallinn). The single cited descriptive source is the Biographical lexicon of Estonian science. The source material supplied for this entry does not contain titles of papers, names of products, patents, companies founded, open-source projects, standards authored, or other concrete project or publication details. Because only high-level biographical metadata is available here, it is not possible from the given material to name specific works, publication years, or direct impacts attributable to Kasvand. What can be stated from the source is that he was recognized sufficiently to be included in a national biographical lexicon of science, which is itself a form of professional acknowledgment. Any detailed listing of contributions — specific publications, inventions, or leadership roles — would require additional source material beyond what has been provided.

## FAQs
### Q: Who was Tõnis Kasvand?
A: Tõnis Kasvand was an Estonian computer scientist, born on 22 June 1930 in Tallinn and deceased in 2025. He is recorded in the Biographical lexicon of Estonian science.

### Q: What were Tõnis Kasvand’s major works or publications?
A: The provided source does not list any specific works, publications, patents, companies, or projects by Tõnis Kasvand. No titles or dates of publications are available in the supplied material.

### Q: Where was Tõnis Kasvand from and what language did he use?
A: He was born in Tallinn and held Estonian citizenship. The provided source lists Estonian as a language he spoke or wrote.

## Why They Matter
From the information supplied, Tõnis Kasvand matters primarily as a recorded member of the Estonian scientific community. His inclusion in the Biographical lexicon of Estonian science indicates that authoritative reference works recognized him as part of Estonia’s scientific and professional record. That recognition situates him among persons deemed notable within national science documentation. Beyond this bibliographic acknowledgment, the provided source material does not document specific achievements, publications, inventions, or leadership positions that would allow a detailed assessment of his technical or scholarly impact. Consequently, while Kasvand’s listing in a national biographical lexicon signals professional significance, the concrete ways in which he influenced computer science practice, research, education, or industry cannot be substantiated from the given material. A fuller evaluation of his lasting impact would require additional primary or secondary sources that describe his work, dates of activity, collaborations, and measurable outcomes.

## Notable For
- Being documented as an Estonian computer scientist (1930–2025).
- Born in Tallinn on 22 June 1930.
- Recorded in the Biographical lexicon of Estonian science.
- Listed as an Estonian-language speaker in the available metadata.

## Body

### Personal data
- Full name: Tõnis Kasvand.
- Given name: Tõnis; family name: Kasvand.
- Sex/gender: male.
- Birth date and place: 22 June 1930, Tallinn.
- Death date: 2025.
- Citizenship: Estonia.
- Languages: Estonian.

### Professional identity and recognition
- Occupation: computer scientist (as specified in the source).
- Instance: human (Wikidata metadata).
- Described by: Biographical lexicon of Estonian science (explicitly cited in the structured properties).
- Wikidata description entry: "Estonian computer scientist (1930-2025)."

### Source limitations and research notes
- The supplied source material contains only high-level biographical metadata. It does not include:
  - Educational history (degrees or institutions).
  - Employer names or institutional affiliations.
  - Titles or dates of publications, patents, or technical reports.
  - Names of projects, companies founded, or standards authored.
  - Award names or specific honors.
- Any further factual detail about Kasvand’s career, publications, or technical contributions will require consultation of the Biographical lexicon entry cited or other primary/secondary sources.