This year is noted for the end of the First World War, on the eleventh hour of the eleventh day of the eleventh month, as well as for the Spanish flu pandemic that killed 50–100 million people worldwide. Events Below, the events of World War I have the "WWI" prefix. January January – 1918 flu pandemic: The "Spanish flu" (influenza) is first observed in Haskell County, Kansas. January 4 – The Finnish Declaration of Independence is recognized by Soviet Russia, Sweden, Germany and France. January 9 – Battle of Bear Valley: U.S. troops engage Yaqui Native American warriors in a minor skirmish in Arizona, and one of the last battles of the American Indian Wars between the United States and Native Americans. January 15 The keel of is laid in Britain, the first purpose-designed aircraft carrier to be laid down. The Red Army (The Workers and Peasants Red Army) is formed in the Russian SFSR and Soviet Union. January 18 - The Historic Concert for the Benefit of Widows and Orphans of Austrian and Hungarian Soldiers is held at the Konzerthaus, Vienna. January 19 – The Russian Constituent Assembly proclaims the Russian Democratic Federative Republic but is dissolved by the Bolshevik government on the same day. January 25 – The Ukrainian People's Republic declares independence from Bolshevik Russia. January 27 – The Finnish Civil War begins with the Battle of Kämärä. January 27 - The adventure film "Tarzan of the Apes" was the first movie released featuring the hero created by Edgar Rice Burroughs. January 28 – Porvenir massacre: Texas Rangers, U.S. Cavalry soldiers and local ranchers kill 15 unarmed Mexican villagers, both men and boys. February February 1 – Cattaro Mutiny: Austrian sailors in the Gulf of Cattaro (Kotor), led by two Czech Socialists, mutiny. February 5 – The is torpedoed off the Irish coast; it is the first ship carrying American troops to Europe to be torpedoed and sunk. February 6 – Women's suffrage in the United Kingdom: Representation of the People Act gives most women over 30 the vote. February 13 – A magnitude (Mw) 7.2 earthquake shakes the Chinese city of Shantou leaving 1,000 dead and causing a moderate tsunami. February 14 – Russia switches from the Julian calendar to the Gregorian calendar; the date skips from January 31 to February 14. February 16 – The Council of Lithuania adopts the Act of Independence of Lithuania,