# Fundamento de Esperanto

> 1905 book by L. L. Zamenhof, describing the basic grammar and vocabulary of Esperanto; the only obligatory authority over the language, according to the Declaration of Boulogne

**Wikidata**: [Q427827](https://www.wikidata.org/wiki/Q427827)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Fundamento_de_Esperanto)  
**Source**: https://4ort.xyz/entity/fundamento-de-esperanto

## Summary
Fundamento de Esperanto is a 1905 book by L. L. Zamenhof that describes the basic grammar and vocabulary of Esperanto, serving as the only obligatory authority over the language according to the Declaration of Boulogne.

## Key Facts
- Authored by L. L. Zamenhof, the inventor of Esperanto
- Published in 1905 as the definitive grammar and vocabulary reference
- Contains the 16 Rules of Esperanto and the Universala Vortaro (dictionary portion)
- The only obligatory authority over the language according to the Declaration of Boulogne
- Has 37 sitelinks according to the source material
- Wikidata identifier: P1476
- Title: Fundamento de Esperanto
- Publication date: 1905
- Instance of: Q7725634 (book)
- Has parts including dictionary translations in five languages and the 16 rules
- Related to L. L. Zamenhof who was a Polish-Jewish physician

## FAQs
- **What is Fundamento de Esperanto?**
  It's a 1905 book by L. L. Zamenhof that establishes the definitive grammar and vocabulary of Esperanto, serving as the only obligatory authority over the language according to the Declaration of Boulogne.

- **Who created Fundamento de Esperanto?**
  L. L. Zamenhof, a Polish-Jewish physician and inventor of Esperanto, authored this definitive reference work in 1905.

- **What does Fundamento de Esperanto contain?**
  The book includes the 16 Rules of Esperanto and the Universala Vortaro, which provides translations of Esperanto words in five languages.

- **Why is Fundamento de Esperanto considered authoritative?**
  According to the Declaration of Boulogne, it's the only obligatory authority over the language, ensuring consistent development and preventing changes to the established foundation.

- **What is the relationship between Fundamento de Esperanto and Universala Vortaro?**
  The Universala Vortaro is a portion of Fundamento de Esperanto that gives translations of Esperanto words in five languages.

## Why It Matters
Fundamento de Esperanto represents a foundational text in the development of Esperanto, establishing a standardized reference that ensures the language's consistency and longevity. By providing a definitive grammar and vocabulary, it created a stable framework for an international auxiliary language that could transcend cultural and linguistic barriers. The Declaration of Boulogne's recognition of it as the only obligatory authority solidified its role as the ultimate reference for Esperanto speakers worldwide. This work has maintained its relevance for over a century, guiding the evolution of Esperanto while preserving its original principles.

## Notable For
- Serves as the definitive reference for Esperanto grammar and vocabulary
- Established as the only obligatory authority over the language according to the Declaration of Boulogne
- Authored by L. L. Zamenhof, the inventor of Esperanto
- Contains the 16 fundamental rules of the language
- Includes the Universala Vortaro with translations in five languages
- Maintained as the authoritative text for over a century
- Recognized as the foundational work for an international auxiliary language

## Body
### History and Creation
Fundamento de Esperanto was authored by L. L. Zamenhof in 1905 as the definitive reference for the Esperanto language. This work emerged as the culmination of Zamenhof's efforts to create a neutral, logical language that could facilitate global communication among people of different linguistic backgrounds. The book was published during a period when Esperanto was gaining recognition as an international auxiliary language, and Zamenhof's work established the language's fundamental principles.

### Composition and Structure
The Fundamento de Esperanto consists of several key components that together form the authoritative reference for Esperanto. It includes:
- The 16 fundamental rules of Esperanto that govern the language's structure
- The Universala Vortaro, which provides translations of Esperanto words in five languages (the specific languages are not detailed in the source material but are mentioned as part of the dictionary portion)
- The comprehensive grammar and vocabulary system that Zamenhof developed

### Authority and Recognition
According to the Declaration of Boulogne, Fundamento de Esperanto holds the unique position as the only obligatory authority over the Esperanto language. This declaration established that any changes or modifications to the language must be consistent with the principles established in this foundational text. The book's status as the definitive reference has been maintained throughout the history of Esperanto, ensuring the language's stability and consistency.

### Relationship with L. L. Zamenhof
Fundamento de Esperanto is directly connected to L. L. Zamenhof, who is recognized as the inventor of Esperanto. Zamenhof, a Polish-Jewish physician, created the language in 1887 and published the first version in *Unua Libro*. The 1905 Fundamento de Esperanto served as the definitive expansion of this work, establishing the language's grammar and vocabulary in a comprehensive reference work.

### Universala Vortaro Component
The Fundamento de Esperanto includes the Universala Vortaro, which functions as a dictionary portion of the text. This component provides translations of Esperanto words into five different languages, facilitating understanding and adoption of the language by speakers from various linguistic backgrounds. The specific languages included are not detailed in the source material but are mentioned as part of the dictionary portion.

### 16 Rules of Esperanto
A significant portion of Fundamento de Esperanto consists of the 16 Rules of Esperanto, which form the fundamental principles governing the language's structure and usage. These rules establish the language's phonology, morphology, syntax, and other linguistic aspects, providing a systematic framework for the Esperanto community.

### Legacy and Impact
Fundamento de Esperanto has maintained its significance as the authoritative reference for Esperanto for over a century. The book's enduring relevance demonstrates the stability and consistency of Zamenhof's linguistic design, which has allowed Esperanto to remain a viable international auxiliary language. The text continues to serve as the foundation for the language's development and serves as a reference point for new speakers and language enthusiasts.

### Technical Details
The Fundamento de Esperanto has several technical identifiers:
- Wikidata identifier: P1476
- Title: Fundamento de Esperanto
- Publication date: 1905
- Has 37 sitelinks according to the source material
- Instance of: Q7725634 (book)
- Has parts including the dictionary portion and the 16 rules

### Related Projects and Components
The Fundamento de Esperanto is part of a larger linguistic ecosystem that includes:
- The 16 Rules of Esperanto as a separate component
- The Universala Vortaro as a dictionary portion
- The broader Esperanto language community and its development

These components work together to form the comprehensive reference system that has guided the evolution of Esperanto since its creation.

## References

1. Freebase Data Dumps. 2013
2. The Cambridge Encyclopedia of Language