ON THIS DAY: ABC News premieres "World News Tonight" on July 10, 1978 – 40 years ago – featuring Peter Jennings, Max Robinson, Barbara Walters and Frank Reynolds. https://abcn.ws/1c6SfMC | ABC World News Tonight with David Muir

ON THIS DAY: David Brinkley and Peter Jennings report for ABC News on April 18, 1983, from Beirut, Lebanon, after a suicide bombing by Islamic extremists killed 63 people, including 17 Americans, at the U.S. Embassy. https://abcn.ws/2qGXvqu | ABC World News Tonight with David Muir

166K views · 1.6K reactions | ICYMI: Kelly Ripa talks about her special birthday gift to David Muir this morning on Live with Kelly and Ryan. | ABC World News Tonight with David Muir | Facebook

1.4M views · 75K reactions | America's favorite bald eagle family is back—and they have two eggs in the nest and counting! David Muir revisits the story of Jackie and Shadow of Big Bear Valley, California, as the expected parents prepare their nest to make it through the hard winter. https://abcnews.link/vYp9AWa | ABC World News Tonight with David Muir | Facebook