National Day Tuesday November 18 2008 (the date changes according to the year)
*On 18th November, 1918, after Germany's defeat in World War I, the Latvians proclaimed an independent state, but its real advent came only in 1920 after the cessation of hostilities between pro- and anti-Bolshevik forces and the withdrawal of all foreign armies from Latvian territory. ***http://www.crwflags.com/fotw/flags/bal_duke.html