What happened on 24 September?

13 events from the Ever-When timeline, ranked by how much they mattered.

1. 2014 ISRO Mars Orbiter Mission (Mangalyaan) India becomes the first nation to reach Mars on its first attempt.
2. 1572 Spanish conquest of the Incas ends Conventional end of Spanish conquest of the Incas.
3. 1991 The Low End Theory (A Tribe Called Quest album) Jazz bass, minimal drums and two-MC chemistry: a blueprint for jazz rap.
4. 1991 Nirvana releases Nevermind Album that broke grunge into the mainstream; Smells Like Teen Spirit becomes an anthem.
5. 1932 Poona Pact Agreement between Gandhi and Ambedkar reserving legislative seats for the depressed classes instead of separate electorates.
6. 1896 Born: F. Scott Fitzgerald American Jazz Age novelist of The Great Gatsby.
7. 867 Reign of Basil I (Macedonian dynasty) Founder of the Macedonian dynasty; ushers in two centuries of Byzantine cultural and military renaissance.
8. 1852 Giffard's powered airship flight Henri Giffard flies a steam-powered hydrogen airship 27 km from Paris to Trappes; the first powered, controlled, lighter-than-air flight.
9. 787 Second Council of Nicaea Empress Irene convenes seventh ecumenical council; restores icon veneration and ends first iconoclasm.
10. 1969 Chicago Seven trial Anti-Vietnam War activists tried for conspiracy over protests at the 1968 Democratic Convention; a landmark trial of 1960s American political dissent.
11. 1940 George VI institutes the George Cross At the height of the Blitz the King creates a new decoration for civilian gallantry, ranking with the Victoria Cross; in 1942 he awards it to the whole besieged island of Malta.
12. 2024 Hurricane Helene Major hurricane devastates the southeastern US.
13. 2019 Supreme Court rules Johnson's prorogation unlawful In R (Miller) v Prime Minister, eleven justices unanimously hold that Johnson's five-week suspension of Parliament amid the Brexit crisis was unlawful and void; MPs return the next