WHAT ALL HAPPENED MAY TO SEPTEMBER 1991
Find out what all happened May to September 1991

The current international treaty defending indigenous peoples, Indigenous and Tribal Peoples Convention, 1989, comes into force. (5. September 1991)

Takako Doi, chair of the Social Democratic Party, becomes Japan's first female speaker of the House of Representatives. (6. August 1991)

Ötzi the Iceman is discovered by German tourists. (19. September 1991)

The Soviet occupation of Hungary ends. (19. June 1991)

Estonia, annexed by the Soviet Union in 1940, issues a decision on the re-establishment of independence on the basis of historical continuity of its pre-World War II statehood. (20. August 1991)

Sonic the Hedgehog , the first game in the Sonic the Hedgehog series is released for the Sega Genesis in North America. (23. June 1991)

Édith Cresson becomes France's first female prime minister. (15. May 1991)

Dissolution of the Soviet Union, August Coup: Soviet President Mikhail Gorbachev is placed under house arrest while on holiday in the town of Foros, Ukraine. (19. August 1991)

Libero Grassi, an Italian businessman from Palermo is killed by the Mafia after taking a solitary stand against their extortion demands. (29. August 1991)

Northern Somalia declares independence from the rest of Somalia as the Republic of Somaliland but is not recognized by the international community. (18. May 1991)

Zviad Gamsakhurdia becomes the first elected President of the Republic of Georgia in the post-Soviet era. (26. May 1991)

1991 Kokkadichcholai massacre: the Sri Lankan Army massacres 152 minority Tamil civilians in the village Kokkadichcholai near the eastern province town of Batticaloa, Sri Lanka. (12. June 1991)

The Medininkai Massacre in Lithuania. Soviet OMON attacks Lithuanian customs post in Medininkai, killing 7 officers and severely wounding one other. (31. July 1991)

Jeffrey Dahmer is arrested in Milwaukee after police discover human remains in his apartment. (22. July 1991)

Latvia declares renewal of its full independence after the occupation of Soviet Union. (21. August 1991)

The Warsaw radio mast, at one time the tallest construction ever built, collapses. (8. August 1991)

Mount Pinatubo exploded, generating an ash column 7 kilometres (4.3 mi) high. (7. June 1991)

Military coup in Haiti (1991 Haitian coup d'état). (29. September 1991)

Mikhail Gorbachev resigns as head of the Communist Party of the Soviet Union. (24. August 1991)

The Warsaw Pact is officially dissolved at a meeting in Prague. (1. July 1991)