So.... whining about a baseball question... when you don't whine just as much about football questions... is hypocritical and chauvinistic, while at the same time probably revealing some prejudice against sports of places you don't like. (and this particular whine reveals some ignorance as whining that baseball is purely an American thing isn't even accurate as it's not the most popular sport there anymore, even while it is extremely popular elsewhere.)
Perhaps in the future soccer will become a universally popular sport that everyone knows detailed history and trivia about, but it currently is not. And neither is any other sport, American, English, or otherwise. Quizzes and quiz questions on any of them are equally valid, complaints about said questions are equally specious.
KBO consistently draws the most spectators. K League is struggling to keep up their attendance. KBO players also make more.
Soccer becomes popular only when there's a big international game, especially against Japan. The national team is popular, but anywhere you go you're more likely to see baseball on the television than soccer. People who claim in surveys to "enjoy soccer" are responding to the national fervor around these international games. They're casual national team fans, rather than sports fans.
Taiwan's baseball came back earlier.
ander: yeah, what she said.
camus: no. The term was originally coined in 1856. People still use it today, though, even if it's not really accurate anymore. It started to become less accurate in the mid-to-late-20th century.