Two thousand seventeen had its fair share of big news stories. The same will be true of 2018. Some of those stories undoubtedly will be a surprise. Not many experts were warning a year ago of impending ethnic cleansing of the Rohingya in Myanmar. Yet it (sadly) became one of the biggest news stories of 2017. Maybe a year from now everyone will be talking about Egypt’s insurgency and a new financial crisis in the European Union (EU). Or maybe not. As Yogi Berra apparently didn’t say, “It’s hard to make predictions, especially about the future.” But a fair number of significant world events are ones we know are coming—call them the “known knowns.” Here are seven known stories to follow closely in 2018. Any one of them could turn into the dominant news event of the year—or fade completely away. We’ll know in twelve months which will sizzle and which will fizzle.