|The Church of Our Lady of Kazan complex is significant under Criterion A in the areas of social and ethnic history as it reflects a national trend of post-war Russian immigration followed by the establishment of a cultural and religious community both in the United States and in Sea Cliff. The history of Our Lady of Kazan Church correlates with the second and third phase of Russian immigration to America and in Sea Cliff post World War I and World War II. Although Russian immigrants began coming to Sea Cliff in the 1920s, a significant number was established in the late 1930s followed by another wave of Russian immigrants who came in the 1940s as "Displaced Persons." These refugees, aided by organizations such as the American- Russian Aid Association, the Tolstoy Foundation, the Church World Service and other organizations, were able to gain access to and settle in the United States. Some of these refugees made their way to the North Shore of Long Island, with many settling in Sea Cliff. The congregation was first established in 1942 by a group of thirtyfive Russian families from Sea Cliff and the nearby communities of Glen Cove, Locust Valley, Great Neck and Little Neck.