31 авг 1854 г. - The cause of the Cholera Epidemic in London is found by John Snow
Описание:
John Snow was a physician that understood that cholera was a water transmitted disease and not air transmitted, which was what was believed at the time. This was a breakthrough in the epidemiology field and led to great improvements in public health services as well as a raise in awareness on the dangers of water pollutionДобавлено на ленту времени:
Дата:
31 авг 1854 г.
Сейчас
~ 171 г назад