During one of the deadliest pandemics in human history – The Spanish Influenza – the then San Francisco Mayor singed The Mask Ordinance – the first order requiring the wearing of face masks in public in the United States.
During one of the deadliest pandemics in human history – The Spanish Influenza – the then San Francisco Mayor singed The Mask Ordinance – the first order requiring the wearing of face masks in public in the United States.