The Democratic People's Republic of Korea, commonly known as North Korea, celebrates its Independence Day on September 9. This public holiday commemorates the official establishment of the DPRK in 1948.
Memorial Day for the Victims of the Crimean War is observed in Russia and Ukraine on September 9. It commemorates the Siege of Sevastopol that lasted from October 17, 1854 until September 9, 1855 and resulted in a defeat of the Russian Empire.
September 9 is marked as Day of the Victims of Holocaust and of Racial Violence in the Slovak Republic. The date of this remembrance day was chosen to commemorate the issuance of the Jews Code during the Second World War.