Teenagers did not exist before the 20th century. Not until the early 1950s did the term gain widespread recognition, but with Teenage, Matt Wolf offers compelling evidence that “teenagers” had a tumultuous effect on the previous half-decade.

This portrait of Hilary Knight, the artist behind the iconic Eloise books, sees him reflecting on his life as an illustrator and his relationship to his most successful work.

In 1991 a group of countercultural visionaries built an enormous replica of earth’s ecosystem called Biosphere 2. When eight “biospherians” lived sealed inside, they faced ecological calamities and cult accusations. Their epic adventure is a cautionary tale but also a testament to the power of small groups reimagining the world.