Ever wondered why you drive on the left side of the road in Pakistan — while half the world drives on the right?
This episode of “Tell Me Why” traces that everyday habit back to an unexpected origin — medieval knights, the rise of Napoleon, and the far-reaching shadow of the British Empire.
From sword hands to steering wheels, this journey explores how ancient defense tactics evolved into modern traffic laws — and how empires carved the world’s driving lanes long before the first car was ever built.