Nathan Birnbaum
| Nathan Birnbaum | |
|---|---|
| Native name | נתן בירנבוים | 
| Born | Nathan Birnbaum 25 April 1864 Vienna, Austrian Empire | 
| Died | 4 April 1937 (aged 72) Scheveningen, Netherlands | 
| Pen name | Mathias Acher Dr. N. Birner Mathias Palme Anton Skart Theodor Schwarz Pantarhei | 
| Occupation | Writer and journalist | 
Nathan Birnbaum (Hebrew: נתן בירנבוים; pseudonyms: "Mathias Acher", "Dr. N. Birner", "Mathias Palme", "Anton Skart", "Theodor Schwarz", and "Pantarhei"; 25 April 1864 – 4 April 1937) was an Austrian writer and journalist, Jewish thinker and nationalist. His life had three main phases, representing a progression in his thinking: a Zionist phase (c. 1883 – c. 1900); a Jewish cultural autonomy phase (c. 1900 – c. 1914), which included the promotion of the Yiddish language; and a religious phase (c. 1914–1937), when he turned to Orthodox Judaism and became staunchly anti-Zionist.
He married Rosa Korngut (1869–1934) and they had three sons: Solomon (Salomo) (1891–1989), Menachem (1893–1944), and Uriel (1894–1956).