Brolga Bill's Bike Trail (BBBT)
'Twas Brolga Bill, from Rutherglen, that caught the cycling craze,
He turned away the good old wings that served him many days...
This geoart shows Brolga Bill's bike.
It is designed so you can be like Brolga Bill, and complete the trail by bike.
(and hopefully not come to the sticky end like his mate Mulga Bill)
All the puzzles are about bike riding, and can be solved with an easy online search.
The puzzle
Australia was the first country to make wearing bicycle helmets mandatory. The majority of early statistical data regarding the effectiveness of bicycle helmets originated from Australia. Their efficacy is still a matter of debate.
In the early 1990s, Australian states and territories introduced various laws mandating that cyclists wear bicycle helmets while riding after a campaign by various groups including the Royal Australasian College of Surgeons.
Question: When did Victoria make wearing helmets compulsory? (Month Year, no spaces)
You can validate your puzzle solution with certitude.