WHAT HAPPENED ON 9. SEPTEMBER
Want to find out what all happened on 9. September

Allegheny Airlines Flight 853 DC-9 collides in flight with a Piper PA-28 and crashes near Fairland, Indiana. (9. September 1969)

In Canada, the Official Languages Act comes into force, making the French language equal to the English language throughout the Federal government. (9. September 1969)

A British airliner is hijacked by the Popular Front for the Liberation of Palestine and flown to Dawson's Field in Jordan. (9. September 1970)

The four-day Attica Prison riot begins, which eventually results in 39 dead, most killed by state troopers retaking the prison. (9. September 1971)

In Kentucky's Mammoth Cave National Park, a Cave Research Foundation exploration and mapping team discovers a link between the Mammoth and Flint Ridge cave systems, making it the longest known cave passageway in the world. (9. September 1972)

1990 Batticaloa massacre, massacre of 184 minority Tamil civilians by Sri Lankan Army in the eastern Batticaloa District of Sri Lanka. (9. September 1990)

Tajikstan declares independence from the Soviet Union. (9. September 1991)

The Palestine Liberation Organization officially recognizes Israel as a legitimate state. (9. September 1993)

Ahmed Shah Massoud, leader of the Northern Alliance, is assassinated in Afghanistan by two al Qaeda assassins who claimed to be Arab journalists wanting an interview. (9. September 2001)

Pärnu methanol tragedy occurs in Pärnu County, Estonia. (9. September 2001)

At exactly 01:46:40 UTC, the Unix billenium is reached, marking the beginning of the use of 10-digit decimal Unix timestamps. (9. September 2001)

2004 Australian embassy bombing: A bomb explodes outside the Australian embassy in Jakarta, killing 10 people. (9. September 2004)

At exactly 9:09:09 PM, the Dubai Metro, the first urban train network in the Arabian Peninsula, is ceremonially inaugurated. (9. September 2009)

A natural gas pipeline explosion in San Bruno, California, creates a "wall of fire" more than 1,000 feet (300 m) high. (9. September 2010)

A wave of attacks kill more than 108 people and injure 351 others in Iraq. (9. September 2012)