88K views · 1.3K reactions | CNN went on the air for the first time 40 years ago on June 1, 1980. Here’s a look back at some of the most defining stories from the last four decades. https://cnn.it/372dRy9 | CNN International | Facebook

CNN's Jeff Zeleny explains the history behind President Donald Trump and Russian President Vladimir Putin's relationship over the years. The two world leaders are set to meet for their biggest summit yet in Anchorage, Alaska, on Friday. See more about the summit: https://cnn.it/45MTqF8 | CNN International