What happened on 18 May?

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

1. 1803 Napoleonic Wars Series of conflicts pitting Napoleonic France against shifting European coalitions; ends at Waterloo and the Congress of Vienna.
2. 1868 Born: Tsar Nicholas II Last Russian Tsar; murdered with his family by Bolsheviks in 1918.
3. 1291 Fall of Acre Sultan al-Ashraf Khalil takes the last major crusader city after a six-week siege; conventional end of the crusader states in the Levant.
4. 1980 Gwangju Uprising Pro-democracy uprising in South Korea brutally suppressed by the military.
5. 1896 Jim Crow era Plessy v Ferguson establishes 'separate but equal' segregation.
6. 1974 Pokhran-I nuclear test India's first nuclear test ('Smiling Buddha') — peaceful nuclear explosion.
7. 1872 Born: Bertrand Russell British philosopher, logician, mathematician and public intellectual; co-author of Principia Mathematica; Nobel literature laureate (1950); long-time activist for pacifism and nucl
8. 1863 Siege of Vicksburg Grant's 47-day siege of the Confederate stronghold on the Mississippi ends with the surrender of Pemberton's army on 4 July 1863, cleaving the Confederacy in two. Coincides with Ge
9. 1896 Plessy v. Ferguson Supreme Court upholds 'separate but equal'; legal foundation of US segregation until overturned by Brown in 1954.
10. 1980 Mount St Helens erupts Catastrophic eruption in Washington State.
11. 1917 Selective Service Act of 1917 US institutes conscription for WW1.
12. 1933 Tennessee Valley Authority created A federal agency that built dams and brought electricity and jobs to the rural South.
13. 1268 Fall of Antioch (1268) Baibars sacks Antioch; 17,000 killed and 100,000 enslaved; the principality founded by Bohemond in 1098 ceases to exist.