1890
ID: 383
Schröder publishes first volume of 'Vorlesungen über die Algebra der Logik', the most comprehensive treatment of algebraic logic to date
ID: 383
1890
ID: 410
Percy Heawood finds the error in Kempe's proof and proves the Five Color Theorem
ID: 410
1890
ID: 1092
Pope Leo XIII composes longer Exorcism Prayer to St. Michael for clergy and laity
ID: 1092
1890
ID: 1093
Bismarck dismissed by Wilhelm II over policy differences, ending Bismarck era
ID: 1093
1890
ID: 1094
Anti-Socialist Laws expire, allowing SPD to reorganize
ID: 1094
1890
ID: 1095
Percentage of population in asylums more than doubled 1890-1920; hereditary societies exclude Jews and immigrants
ID: 1095
1890
ID: 1096
Leicester vaccination rate drops to 5%
ID: 1096
1890
ID: 1097
14% urban population served by water works
ID: 1097
1890
ID: 1098
General Rivera treats 4,000+ typhus/pneumonia cases with jicama root - not been one death
ID: 1098
1890
ID: 1099
Charles de Foucauld enters Trappists at Notre-Dame-des-Neiges, transfers to poorest monastery in Akbes
ID: 1099
1890
ID: 2356
English Partnership Act - Pollock's draft codifies partnership law, defines partnership as 'relation between persons'
ID: 2356
1890
ID: 4219
Hollerith's electric tabulating machines process U.S. Census in 2.5 years instead of predicted 13 years - saves $5 million
ID: 4219