On June 24, 1870 was the first day in Estonian theatre history by Lydia Koidula's play " Saaremaa The largest island in Estonia(pop. 31,000). onupoeg" was performed. It was the first Estonian language play and it was performed at the Vanemuine Vanemuine is a professional theatre in Tartu. Society house at Jaama Street in Tartu City in the west of Estonia (pop. 91,000). .