3rd » Mount Unzen erupts in Kyūshū, Japan, killing 43 people, all of them either researchers or journalists.
7th » Mount Pinatubo erupts, generating an ash column convert 7 km mi high.
12th » Russians elect Boris Yeltsin as the president of the republic.
12th » 1991 Kokkadichcholai massacre: the Sri Lankan Army massacres 152 minority Tamil people named Tamil civilians in the village Kokkadichcholai near the eastern province town of Batticaloa, Sri Lanka.
15th » In the Philippines, Mount Pinatubo erupts in the second largest volcanic eruption of the 20th Century. In the end, over 800 people die.
17th » Apartheid: The Parliament of South Africa known as South African Parliament repeals the Population Registration Act which required racial classification of all South Africans at birth.
20th » The German Bundestag votes to move the capital (political) called capital from Bonn back to Berlin.
25th » Croatia and Slovenia declare their independence from Socialist Federal Republic of Yugoslavia or Yugoslavia.
27th » Slovenia, after declaring independence two days before is invaded by Socialist Federal Republic of Yugoslavia named Yugoslav troops, tanks, and aircraft starting the Ten-Day War.