I believe they haven't.
We can see this through the language that is chosen by the author to desrcibe Okonkwo's encounter with White men. The author use language such as 'the first shadow' of white men. This phrase indicates that prior to that occurence, they never made contact to any white men before.
<span>The Alcohol dehydrogenase breaks down spirits in the stomach, which reduces the amount of alcohol that enters the bloodstream about 20%; the rest is eventually metabolized by similar enzymes in the liver.</span>
I’m pretty sure popular vote is like how many people actually voted for them and electoral vote is when people vote for someone else who makes the final say. I’m pretty sure but idk