
Parents
Siblings
1918
1920
Age: 2y
1920 • Hydrocodone, a narcotic analgesic closely related to codeine is first synthesized in Germany by Carl Mannich and Helene Löwenheim. |
1930
Age: 12y
1920 • Hydrocodone, a narcotic analgesic closely related to codeine is first synthesized in Germany by Carl Mannich and Helene Löwenheim. |