Lithuanian restaurant at Union Avenue and Stagg Street. September 24, 1941. In the early 20th century, Eastern European immigrants began to settle in Williamsburg, including a significant Lithuanian community (today, the Church of the Annunciation of the Blessed Virgin Mary continues to provide services in Lithuanian). Across Union Avenue from the restaurant is Lithuanian Square (then Lituanica Square), a small gore park with a monument to two Lithuanian aviators who perished in a 1933 attempt to complete a transatlantic flight from Brooklyn to Kaunas, Lithuania.