18th Century (1 Jan 1701 Jahr – 31 Dez 1800 Jahr)
Beschreibung:
- Gabriel Fahrenheit (1686 - 1736) created the first mercury thermometer in 1714- John Hunter (1728 - 1793) an English surgeon who established scientific surgical procedures and introduced tube feeding in 1778.
- Benjamin Franklin (1706 - 1790) invented bifocals for glasses in 1784
The average life span was 40 - 50 years
Zugefügt zum Band der Zeit:
Datum:
1 Jan 1701 Jahr
31 Dez 1800 Jahr
~ 100 years
