Driving on the right side of the road

In Taiwan, vehicles drive on the right hand side of the road. Officially, that is. You can expect to see many motorcycles, even more bicycles and the odd car using the wrong side of the road. Everyone is used to it, nobody bats an eyelid. What I didn't know until today is that prior to 1946, traffic in Taiwan used the left side of the road (as in Japan, which ruled Taiwan from 1895 to 1945).