Foreword – The Origins and Development of the National Minority Communities in Lithuania prior to 1918 — Existential Parameters of the National Minorities of Lithuania as by the 1923 Population Census — Development of Mechanism for Protection of the National Minority Rights and Capabilities — Peculiarities and Controversies of Social Coexistence of the National Minorities in Lithuania — Participation of the National Minorities in the Lithuanian Seimas and Local Municipalities — Public Organizations of the National Minorities of Lithuania — Educational Institutions of the National Minorities of Lithuania — Characteristics of the National Minorities by Religious Denomination — Contribution of the National Minorities to the Economy of Lithuania — The Peculiarities of Ethnic Composition of the Klaipėda Region and Integration of National Minorities — Epilogue or the Developments Subsequent until 1940.