# Ivan Chalupa
**Wikidata**: [Q22915022](https://www.wikidata.org/wiki/Q22915022)  
**Source**: https://4ort.xyz/entity/ivan-chalupa

## Summary
Ivan Chalupa is a Czech programmer, software engineer, analyst, and chess historian born in Prague in 1954. He is also recognized as a Wikimedian, contributing to Wikimedia projects under the username "Chalupa." His career spans software development and the documentation of chess history.

## Biography
- **Born:** May 19, 1954, in Prague
- **Nationality:** Czech Republic
- **Known for:** Work as a programmer, analyst, and chess historian; contributions as a Wikimedian
- **Field(s):** Software Engineering, Chess History, Wiki projects
- **Languages:** Czech

## Contributions
Ivan Chalupa's professional contributions bridge the technical fields of software development and the humanities, specifically chess history. As a programmer and software engineer, he is classified as a practitioner of software engineering and a developer of computer software.

In the realm of public knowledge and history, Chalupa serves as a Wikimedian, utilizing the username "Chalupa" to contribute to Wikimedia projects. His specific focus as a chess historian involves the research and documentation of the game's past. His status as a recognized authority in these areas is evidenced by his cataloging in multiple academic and library databases, including the Database of National Library of the Czech Republic (ID: jo2012735779) and the Czech book database Databáze knih (ID: 45874). He holds an International Standard Name Identifier (ISNI) and a Virtual International Authority File (VIAF) ID, which formally link his professional and creative output across these distinct domains.

## FAQs

### Q: What is Ivan Chalupa's profession?
A: Ivan Chalupa is a multi-disciplinary professional known primarily as a programmer, software engineer, and analyst. Additionally, he is a recognized chess historian.

### Q: When and where was Ivan Chalupa born?
A: Ivan Chalupa was born on May 19, 1954, in Prague, which was part of Czechoslovakia at the time and is now the capital of the Czech Republic.

### Q: Is Ivan Chalupa involved in the Wikimedia community?
A: Yes, Ivan Chalupa is a Wikimedian. He contributes to Wikimedia projects using the username "Chalupa."

### Q: What languages does Ivan Chalupa speak?
A: According to available structured data, Ivan Chalupa speaks, writes, or signs Czech.

## Why They Matter
Ivan Chalupa represents a significant intersection between technology and cultural history. His dual role as a software engineer and a chess historian highlights the contribution of technical professionals to the preservation of specialized historical knowledge. By applying his analytical skills to the history of chess, he aids in the systematic documentation of the game's legacy. Furthermore, his active participation as a Wikimedian underscores a commitment to the democratization of knowledge, ensuring that information regarding both software and chess history remains accessible to the public. His recognition through various international identifiers (ISNI, VIAF) confirms his standing as a verified contributor to these fields.

## Notable For
- **Chess Historian:** Specialized focus on the history of chess.
- **Wikimedian:** Active contributor to the Wikimedia movement.
- **Software Development:** Professional career as a programmer and analyst.
- **Authority Control:** Holder of ISNI (0000000393686656) and VIAF (288063437) identifiers.
- **National Recognition:** Cataloged in the National Library of the Czech Republic.

## Body

### Personal Background
Ivan Chalupa was born on May 19, 1954, in Prague. He is a male citizen of the Czech Republic and speaks the Czech language. His personal identifiers include an image hosted on Wikimedia Commons.

### Professional Career
Chalupa is identified as a practitioner of software engineering.
*   **Roles:** Programmer, Analyst, Software Engineer.
*   **Classification:** He is defined as a person who writes computer software and is a subclass of software developer.

### Contributions to History and Knowledge
Beyond his technical career, Chalupa has established himself in the academic and public knowledge sectors.
*   **Chess History:** He is explicitly cited as a chess historian.
*   **Wikimedia:** He holds the username "Chalupa" on Wikimedia projects.
*   **Authorship:** He is listed in the Czech database Databáze knih with author ID 45874.

### Identifiers and Verifiability
Chalupa's identity and works are tracked through several standardized systems:
*   **ISNI:** 0000000393686656
*   **VIAF ID:** 288063437
*   **NL CR AUT ID:** jo2012735779 (National Library of the Czech Republic)

## References

1. Czech National Authority Database