Jaan Sarv, Estonian mathematician and scholar (d. 1954)
Jaan Sarv (Võro: Sarvõ Jaan; 21 December 1877 – 23 August 1954) was an Estonian mathematician and educator. Most of his life he worked as a professor at the University of Tartu. Sarv laid the foundation of Estonian language mathematical education.
![Jaan Sarv](https://cdn.calendarz.com/uploads/events/december/21/123578/jaan-sarv_compressed.jpg)
1877Dec, 21
Jaan Sarv
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Events on 1877
- 20Feb
Swan Lake
Tchaikovsky's ballet Swan Lake receives its premiere at the Bolshoi Theatre in Moscow. - 10May
Mihail Kogălniceanu
Romania declares itself independent from the Ottoman Empire following the Senate adoption of Mihail Kogălniceanu's Declaration of Independence. - 10Jul
Mayagüez, Puerto Rico
The then-villa of Mayagüez, Puerto Rico, formally receives its city charter from the Royal Crown of Spain. - 5Oct
Nez Perce people
Chief Joseph surrenders his Nez Perce band to General Nelson A. Miles. - 21Nov
Phonograph
Thomas Edison announces his invention of the phonograph, a machine that can record and play sound.