2013 Event Tsakhiagiin Elbegdorj, President of Mongolia, becomes the first head of state to visit with Kim Jong-un in North Korea since he became Supreme Leader 2011 Event After days of protests, martial law is declared in Xilinhot, a city located in Inner Mongolia 1998 Event Mongolia switches from a 46 hour to 40 hour work week 1993 Event Punsalmaagiyn Otsjirbat recognized as president of Mongolia 1991 Death Yumzhagin Tsendenbal, Prime Minister of Mongolia 1952 - 1974, dies 1961 Event Outer Mongolia and Mauritania become 102nd and 103rd members of UN 1960 Event Mongolia adopts constitution 1949 Birthday Maidarjabyn Ganzorig, Mongolia, cosmonaut, Soyuz 39 backup 1947 Birthday Jugderdemidjin Gurragcha, Mongolia, cosmonaut, Soyuz 39 1939 Event Japanese invasion army driven out of Mongolia 1939 Event Russian offensive under General Zjoekov against Japanese invasion in Mongolia 1921 Event Mongolia gains independence from China (National Day) 1921 Event Mongolia (formerly Outer Mongolia) declares independence from China 1900 Death Ferdinand Hamet, Dutch missionary in Mongolia, murdered at 59 1227 Death Ghengis Khan, Temudjin, founded Mongolia, dies