Each year there is speculation about which one of hundreds of nominated candidates will be awarded the award. (Last year, it went to the United Nations’ World Food Program.) The choice is often controversial, especially when it’s a sitting world leader, as happened in 2019 with Ethiopian Prime Minister Abiy Ahmed, who went on to become embroiled in a civil war. Oslo is expected to announce the prize for 2021 on Friday. Here’s a list of potential candidates.