The 1st Congress of the RSDLP (Russian: Российская социал-демократическая рабочая партия, РСДРП) was held between March 13–March 15 (March 1–March 3, O.S.) 1898 in Minsk, Russian Empire (now Belarus) in secrecy. The venue was a house belonging to Rumyantsev, a railway worker on the outskirts of Minsk (now in the town centre). The cover story was that they were celebrating the nameday of Rumyantsev's wife. A stove was kept burning in the next room in case secret papers had to be burnt. Lenin smuggled a draft program for the party written in milk between the lines of a book.