There are people still alive who were the first in your community to ever receive a life-saving shot of penicillin.
I know this with great certainty because the first were very often young children who are still in their healthy seventies and eighties today.
Gather up their firsthand oral recollections while they are still alive and healthy - because at the 100th celebration of the first ever penicillin shots they will all be dead and it will be too late.
I just missed my chance in my own community.