The 1st Congress of the RSDLP (Russian: Российская социал-демократическая рабочая партия, РСДРП) was held between 13 March – 15 March (1 March–3 March 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.