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7 Jan 1911 Jahr - Typhoid Rates Explode
Beschreibung:
Led to focus on sewers and sewer sanitation.
Zugefügt zum Band der Zeit:
Canadian OT & Public Health Timeline
By
Katie Lewis
3 Mai 2020
0
0
352
Datum:
7 Jan 1911 Jahr
Jetzt
~ 114 years ago
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