Spouse
Children
1866
| 1866 • Alfred Nobel invents dynamite in Germany. |
1887
Jan 2
Age: 21y
|
marriageFriederich Wilhelm Roetzheim Chicago, Cook, Illinois, USA ⇓ 1 Source ⇓ |
| 1887 • The cornerstone of the new Stanford University, in northern California, is laid (the college opens in 1891). |
1887
Jul 4
Age: 21y
birth of childTheodore Roetzheim Chicago, Cook, Illinois, USA ⇓ |
| 1887 • The United States Senate allows the Navy to lease Pearl Harbor as a naval base. |
1889
Feb 14
Age: 23y
birth of childPauline A Roetzheim Chicago, Cook, Illinois, USA ⇓ 1 Source ⇓ |
| 1889 • Herman Hollerith receives a patent for his electric tabulating machine in the United States. |
1900
Age: 34y
| 1900 • Botanist Hugo de Vries rediscovers Mendel's Laws of Heredity. |
1927
Age: 61y
| 1927 • 200 people demonstrate in Hyde Park, London against the death sentencing of Italian immigrant anarchists Sacco and Vanzetti. |