1919
ID: 1275
Treaty of Versailles - sets stage for German resentment and strategic adaptation
ID: 1275
1919
ID: 1276
Dr. Charles Sheard dismisses anti-vaccination parents as 'a hygienic cult... ignorant and superstitious'
ID: 1276
1919
ID: 1278
Spanish flu pandemic peaks and ends (Firstenberg correlates with end of WWI radio expansion)
ID: 1278
1919
ID: 1279
Wilhelm Reich first meets Freud, asks for tutorial on sexology
ID: 1279
1919
ID: 1280
Arthur Eddington confirms Einstein's relativity during solar eclipse - Proves abstract mathematical geometry describes physical reality
ID: 1280
1919
ID: 1281
Poland typhus: 120,000 cases in July alone
ID: 1281
1919
ID: 1282
Blessed Francisco and Jacinta die (1919-1920) - Offer everything for sinners and Holy Father
ID: 1282
1919
ID: 2365
German Bankruptcy Code reform - allows discharge without creditor consent, social view of bankruptcy
ID: 2365
1919
ID: 4287
Underwood introduces first successful portable typewriter - weighs only 10 pounds
ID: 4287
1919
ID: 4594
Planck's daughter Emma dies in childbirth - twin sister of Grete, married to Grete's widower
ID: 4594
1919
ID: 5596
German engineers perfect precision grinding machines (Schleifmaschinen) achieving surface finishes under 0.1 micron
ID: 5596
1919
ID: 5609
DIN standardizes metric threads - German thread cutting becomes global standard replacing various national systems
ID: 5609
1919
ID: 1277
December 25, 1919
Lenin orders execution of Christmas celebrants: 'those who do not show up for work because of Nikola are shot'
ID: 1277