For historical information:
-Goldmanis, Maris. "Latvian History." Latvian History. N.p., n.d. Web. 26 Jan. 2015.
http://latvianhistory.com/
-"Latvia." Infoplease. Infoplease, n.d. Web. 28 Jan. 2015.
http://www.infoplease.com/country/latvia.html?pageno=1
-"History of Latvia: A Timeline | Latvian Institute." History of Latvia: A Timeline. Latvia.eu, n.d. Web. 28 Jan. 2015.
http://www.latvia.lv/library/history-latvia-timeline
-"The Occupation of Latvia | Latvian Institute." The Occupation of Latvia. Latvia.eu, n.d. Web. 28 Jan. 2015.
http://www.latvia.eu/content/history-occupation-latvia
-S. "The Three Occupations of Latvia." The Three Occupations of Latvia (n.d.): n. pag. LATVIJAS REPUBLIKAS ĀRLIETU MINISTRIJA. Occupation Museum, 2005. Web.
http://www.mfa.gov.lv/data/file/e/P/3_okupacijas.pdf
-Urban, William. "ORB: The Online Reference Book for Medieval Studies."ORB: The Online Reference Book for Medieval Studies. ORB: The Online Reference Book for Medieval Studies, n.d. Web. 28 Jan. 2015.
http://www.the-orb.net/encyclop/religion/crusades/cruurban.html
-"The Great Northern War." The Great Northern War. History Learning Site, 2014. Web. 28 Jan. 2015.
http://www.historylearningsite.co.uk/great_northern_war.htm
-"The 1905 Russian Revolution." The 1905 Russian Revolution. History Learning Site, n.d. Web. 26 Jan. 2015.
http://www.historylearningsite.co.uk/1905_russian_revolution.htm
-"Partitions of Poland | Polish History." Encyclopedia Britannica Online. Encyclopedia Britannica, n.d. Web. 28 Jan. 2015.
http://www.britannica.com/EBchecked/topic/466910/Partitions-of-Poland
-Smogorzewski, Kazimierz Maciej. "The Soviet Occupation and Incorporation." Encyclopedia Britannica Online. Encyclopedia Britannica, n.d. Web. 28 Jan. 2015.
http://www.britannica.com/EBchecked/topic/332121/Latvia/37317/The-Soviet-occupation-and-incorporation
-Lynch, Michael. "The Emancipation of the Russian Serfs, 1861: A Charter of Freedom or an Act of Betrayal?" The Emancipation of the Russian Serfs, 1861: A Charter of Freedom or an Act of Betrayal? History Today, Dec. 2003. Web. 26 Jan. 2015.
http://www.historytoday.com/michael-lynch/emancipation-russian-serfs-1861-charter-freedom-or-act-betrayal
-Richter, Klaus. "Independence Wars (Lithuania, Latvia and Estonia)."Independence Wars (Lithuania, Latvia and Estonia). International Encyclopedia of the First World War, n.d. Web. 28 Jan. 2015.
http://encyclopedia.1914-1918-online.net/article/independence_wars_lithuania_latvia_and_estonia
-"Occupied by Nazi and Soviet Forces, 1940-1944." Cold War Sites. The Baltic Initiative and Network, n.d. Web. 28 Jan. 2015.
http://coldwarsites.net/country/latvia/
-Berkis, Alexander V. "INSTITUTE FOR HISTORICAL REVIEW." Soviet Russia's Persecution of Latvia, 1918 to the Present. Institute for Historical Review, n.d. Web. 28 Jan. 2015.
http://www.ihr.org/jhr/v08/v08p-25_Berkis.html
-Smalkais, E., and J. Vējiņš. Latvia through the Centuries: Ice Age to Today! (9000 B.C.-2007): The Story of How Life Evolved in Latvia, from the Ice Age to This Day: With Emphasis on Events during Last Century, as Seen and Told by a Number of Participants. Rīga: A/S Preses Nams, 2007. Print.
-Goldmanis, Maris. "Latvian History." Latvian History. N.p., n.d. Web. 26 Jan. 2015.
http://latvianhistory.com/
-"Latvia." Infoplease. Infoplease, n.d. Web. 28 Jan. 2015.
http://www.infoplease.com/country/latvia.html?pageno=1
-"History of Latvia: A Timeline | Latvian Institute." History of Latvia: A Timeline. Latvia.eu, n.d. Web. 28 Jan. 2015.
http://www.latvia.lv/library/history-latvia-timeline
-"The Occupation of Latvia | Latvian Institute." The Occupation of Latvia. Latvia.eu, n.d. Web. 28 Jan. 2015.
http://www.latvia.eu/content/history-occupation-latvia
-S. "The Three Occupations of Latvia." The Three Occupations of Latvia (n.d.): n. pag. LATVIJAS REPUBLIKAS ĀRLIETU MINISTRIJA. Occupation Museum, 2005. Web.
http://www.mfa.gov.lv/data/file/e/P/3_okupacijas.pdf
-Urban, William. "ORB: The Online Reference Book for Medieval Studies."ORB: The Online Reference Book for Medieval Studies. ORB: The Online Reference Book for Medieval Studies, n.d. Web. 28 Jan. 2015.
http://www.the-orb.net/encyclop/religion/crusades/cruurban.html
-"The Great Northern War." The Great Northern War. History Learning Site, 2014. Web. 28 Jan. 2015.
http://www.historylearningsite.co.uk/great_northern_war.htm
-"The 1905 Russian Revolution." The 1905 Russian Revolution. History Learning Site, n.d. Web. 26 Jan. 2015.
http://www.historylearningsite.co.uk/1905_russian_revolution.htm
-"Partitions of Poland | Polish History." Encyclopedia Britannica Online. Encyclopedia Britannica, n.d. Web. 28 Jan. 2015.
http://www.britannica.com/EBchecked/topic/466910/Partitions-of-Poland
-Smogorzewski, Kazimierz Maciej. "The Soviet Occupation and Incorporation." Encyclopedia Britannica Online. Encyclopedia Britannica, n.d. Web. 28 Jan. 2015.
http://www.britannica.com/EBchecked/topic/332121/Latvia/37317/The-Soviet-occupation-and-incorporation
-Lynch, Michael. "The Emancipation of the Russian Serfs, 1861: A Charter of Freedom or an Act of Betrayal?" The Emancipation of the Russian Serfs, 1861: A Charter of Freedom or an Act of Betrayal? History Today, Dec. 2003. Web. 26 Jan. 2015.
http://www.historytoday.com/michael-lynch/emancipation-russian-serfs-1861-charter-freedom-or-act-betrayal
-Richter, Klaus. "Independence Wars (Lithuania, Latvia and Estonia)."Independence Wars (Lithuania, Latvia and Estonia). International Encyclopedia of the First World War, n.d. Web. 28 Jan. 2015.
http://encyclopedia.1914-1918-online.net/article/independence_wars_lithuania_latvia_and_estonia
-"Occupied by Nazi and Soviet Forces, 1940-1944." Cold War Sites. The Baltic Initiative and Network, n.d. Web. 28 Jan. 2015.
http://coldwarsites.net/country/latvia/
-Berkis, Alexander V. "INSTITUTE FOR HISTORICAL REVIEW." Soviet Russia's Persecution of Latvia, 1918 to the Present. Institute for Historical Review, n.d. Web. 28 Jan. 2015.
http://www.ihr.org/jhr/v08/v08p-25_Berkis.html
-Smalkais, E., and J. Vējiņš. Latvia through the Centuries: Ice Age to Today! (9000 B.C.-2007): The Story of How Life Evolved in Latvia, from the Ice Age to This Day: With Emphasis on Events during Last Century, as Seen and Told by a Number of Participants. Rīga: A/S Preses Nams, 2007. Print.