Before this morning, if you'd asked me for one fact about Samoa I would have told you that it's a country that's pretty handy at rugby.
But if you'd asked me to follow that up with a second piece of info I would have been struggling.
The logic behind the decision is simple: many Samoans expats live in Australia and New Zealand, both right-hand drive markets, so switching sides will make it easier for them to import secondhand cars.
Many locals - especially those with left-hand drive cars - are less keen. They've even set up a protest group called PASS - People Against Switching Sides.
But with Samoa's prime minister giving the scheme his full backing, it looks likely that on September 7th the country will change to driving on the opposite side of the road.
Several other countries have made similar swops, but always from driving on the left to driving on the right. And nobody has tried it for some time: Ghana did it in 1974 but the last European countries to change sides were Sweden in 1967 and Iceland in 1968.