Every year, Hasidic Jews from all over the world come to Lelów, in Poland's southern Silesia region, to pray at Biderman's grave on the anniversary of his death.
According to tradition, prayers are accompanied by dancing and the singing of psalms.
Saturday, January 28, marks the 209th anniversary of the death of Biderman, the first tzaddik of the Hasidic Lelow dynasty and one of the most famous tzaddikim in Poland at that time.
Biderman (1746-1814), also known as Lelower, was a famous thinker and physician. He was the founder of one of the largest Hasidic dynasties and a supporter of the peaceful co-existence of different religions and nations, Polish broadcaster Polsat News reported.
He led an ascetic lifestyle, fasting from Sabbath to Sabbath, and was known as a lover and protector of animals, it said.
The anniversary is an important day for Hasidic Jews worldwide.