A “generation” is defined as a group of people born in the same time period, and generation names exemplify our human tendency to categorize ourselves. Here’s a brief, non-comprehensive list of the Western cultural generations.

Neil Armstrong became a household name after he became the first human to step foot on the moon. Armstrong passed away in 2012 at the age of 82, but more light has been shed on his legacy in the film “First Man,” which came out Friday.