What was the first game in the "Battlefield" series?

The first game in the Battlefield series is Battlefield 1942. This game was released in 2002 and was developed by Digital Illusions CE. It is a first-person shooter game set during World War II and allowed players to engage in large-scale battles with a variety of vehicles and weapons. It introduced the iconic multiplayer aspect of the series, with the ability to play with up to 64 players in online matches. Battlefield 1942 received critical acclaim for its immersive gameplay and innovative multiplayer features, making it the starting point for one of the most successful and enduring gaming franchises.