The largest investment for any family daring the Oregon Trail was the purchase of oxen. Bullets? Medicine? Clothing for the children? Safe passage across dangerous rivers? All of these were luxuries. Even children were a luxury, since in a worst case scenario your adults could survive on squirrel meat and repopulate once they reached the west coast. But if your oxen died? Then the grim ghosts of dysentery that stalked the trail would show no mercy.Learning Chinese? This week on Popup Chinese we boot up the Apple II and discover the surprising amount that Chinese people know about American history. And Super Mario and Contra and strange Chinese role-playing games involving mystical swords. Also, details on the not-so-legit Nintendo gaming systems that were all the rage in the days before the XBox.