1840
ID: 445
August Ferdinand Möbius solves the 'five princes problem' using what would later be called graph coloring
ID: 445
1840
ID: 819
Frederick William IV becomes King of Prussia - initially raises hopes for liberal reform
ID: 819
1840
ID: 820
Golden Age of American Learning - 93-100% complex literacy without compulsory schooling
ID: 820
1840
ID: 821
Massachusetts School Committee under Horace Mann addresses family deterioration from industrialization
ID: 821
1840
ID: 822
UK Vaccination Act provides free vaccinations for poor, outlaws variolation
ID: 822
1840
ID: 823
Cauchy develops systematic theory of complex functions - essential for electrical engineering
ID: 823
1840
ID: 824
First compulsory vaccination laws passed in England
ID: 824
1840
ID: 825
Karl Heinzen describes Marx with small eyes like wet goblin, chanting words from Faust
ID: 825