Health workers from Tongji Hospital in Wuhan, China, share an emotional embrace with their peers from a hospital in Jilin province at the Tianhe Airport. Colleagues who worked on the front lines together bid farewell as Wuhan lifted its coronavirus lockdown in April. This past year was like no other. The world suffered deeply from the novel coronavirus and many endured difficult sacrifices. But other news never stopped in 2020. Tensions escalated with Iran after the U.S. killed a top Iranian general. Britain made an arduous exit from the European Union. China enacted tough new authority over Hong Kong. The racial justice movement in the United States set off solidarity protests in many other countries. And that was just in the first half of the year.