1987 – The Montreal Protocol is signed to protect the ozone layer from depletion.

2015 – The first observation of gravitational waves is made, announced by the LIGO and Virgo collaborations on 11 February 2016.

2000 – Microsoft releases Windows Me.

1987 – Goiânia accident: A radioactive object is stolen from an abandoned hospital in Goiânia, Brazil, contaminating many people in the following weeks and causing some to die from radiation poisoning.

1962 – An appeals court orders the University of Mississippi to admit James Meredith, the first African-American student admitted to the segregated university.

1956 – The IBM 305 RAMAC is introduced, the first commercial computer to use disk storage.

2013 – NASA confirms that its Voyager 1 probe has become the first manmade object to enter interstellar space.

1977 – South African anti-apartheid activist Steve Biko dies in police custody.

1958 – Jack Kilby demonstrates the first working integrated circuit while working at Texas Instruments.

1933 – Leó Szilárd, waiting for a red light on Southampton Row in Bloomsbury, conceives the idea of the nuclear chain reaction.

2001 – The September 11 attacks, a series of coordinated terrorist attacks killing 2,977 people using four aircraft hijacked by 19 members of al-Qaeda. Two aircraft crash into the World Trade Center in New York City, a third crashes into The Pentagon in Arlington County, Virginia, and a fourth into a field near Shanksville, Pennsylvania.

1997 – NASA's Mars Global Surveyor reaches Mars.

2008 – The Large Hadron Collider at CERN, described as the biggest scientific experiment in history, is powered up in Geneva, Switzerland.

 Red_Dragon wrote:
this record broke this year: https://en.wikipedia.org/wiki/...
edit: not technically a filibuster (another reason i hate politics)

1968 – Police and protesters clash during 1968 Democratic National Convention protests as protesters chant "The whole world is watching".

1963 – March on Washington for Jobs and Freedom: Rev. Dr. Martin Luther King Jr. gives his I Have a Dream speech.

1955 – Black teenager Emmett Till is lynched in Mississippi for whistling at a white woman, galvanizing the nascent civil rights movement.

1859 – The Carrington event is the strongest geomagnetic storm on record to strike the Earth. Electrical telegraph service is widely disrupted.

1956 – The nuclear power station at Calder Hall in the United Kingdom was connected to the national power grid becoming the world's first commercial nuclear power station to generate electricity on an industrial scale.