Zamenhof Day Zamenhof Day Zamenhof Day (), also called Esperanto Book Day, is celebrated on 15 December, the birthday of Esperanto creator L. L. Zamenhof. It is the most widely celebrated day in Esperanto culture. On this day, Esperantists hold information sessions and cultural gatherings to promote literature in Esperanto. The history of celebrating Esperanto on Zamenhof's birthday can be traced back to 17 December 1878, when at a birthday party for his 19th birthday he presented to his friends his "Lingwe uniwersala", the first version of his international language. By 1887, this language had evolved into what is now recognized as
Ludwik Dorn Ludwik Dorn Ludwik Dorn (, born 5 June 1954 in Warsaw) is a Polish conservative politician, former Deputy Prime Minister and member of Sejm elected on 5 November 2007. He was born Ludwik Dornbaum, to Jewish parents, Henryk Dornbaum, a socialist activist and Alina née Kluger, a doctor. All of his father's family was murdered during the Holocaust. In the 1960s Dornbaum family changed their name to Dorn. He was raised agnostic, but he converted to Roman Catholicism at the age of 51. From 31 October 2005 to 7 February 2007 he was Minister of Interior and Administration, resigned after