From the publisher's website:

The invention of the tank, the first appearance of a superhero, and the invention of the coffee maker… can you put all these events correctly on the timeline? With Timeline Diversity, learn the answer to these general interest questions and many more. Each card has a different general interest event and on the opposite side, its associated date. To begin, one card is randomly selected from the draw pile. This card is placed in the middle of the table, date-side up, and forms the starting point of a chronological line which will slowly be built outwards. On your turn, you'll choose one of your cards and place it before or after the initial card. Your card is then turned date-side up. If your guess was correct, the card remains on the table. Otherwise, the card is discarded, and a new one must be drawn to replace it. As more cards are played, it quickly becomes harder to correctly place new ones! The first player to get rid of their cards wins. Play Timeline Diversity alone or in combination with other Timeline games for an even greater challenge!