LIVE FOR CLASS on Instagram: "A rare piece of footage shows the exact moment the first plane hit the Twin Towers on September 11, 2001. The clip was filmed by French brothers Jules and Gédéon Naudet, who happened to be in New York documenting the lives of FDNY firefighters from Engine 7, Ladder 1. On what began as a routine call to check a suspected gas leak near the World Trade Center, they ended up recording one of the most defining moments in modern history."

Inside History on Instagram: "You’re witnessing a world few were ever meant to see! For the first time — with the help of the BBC — you’re watching real footage of an uncontacted tribe, deep in the heart of the Amazon rainforest. These people have never used a phone, never seen a city, and don’t speak any language you know. They live entirely off the land, following ancient traditions that have endured for thousands of years. Filmed from a kilometer above, through a powerful zoom lens, this dist