The history of FSV Mainz 05 begins in 1905 when a group of students and football enthusiasts came together to establish a sports club. At a time when football in Germany was still in its infancy, the founders emphasized community and team spirit. Under the name '1. Fußballverein Mainz 05', the foundation was laid for one of the most traditional football teams in Germany.

The early years of the club were characterized by regional games and a rapidly growing membership. By 1910, the club had celebrated its first successes in regional competitions, solidifying its importance in the area. These early years fostered a passionate fan base, which remains a hallmark of the Nullfünfer to this day.

The 1920s and 1930s were a transformative period for Mainz 05. The club underwent various phases of league participation, including entries into several regional leagues. During this time, the club's identity continued to evolve, and the name FSV Mainz 05 became increasingly recognized.

A particularly defining moment in the club's history was the rebuilding after World War II. The post-war years brought many challenges, but the Nullfünfer found ways to reorganize and resume play. This time not only solidified the community within the club but also strengthened the bond with fans who stood together during difficult times.

In the 1960s, the club experienced another surge when the Bundesliga was founded. Although Mainz 05 was not initially part of the top league, the ambitions were high. The club did everything possible to make the leap into the Bundesliga, and its players became symbols of fighting spirit and determination.

The journey of the club was not always easy, but the passion of the fans and the resilience of the players kept the tradition alive. The promotion to the Bundesliga in 2004 marked the pinnacle of a long and eventful history that traces its roots back to the early 20th century.

Today, more than a century after its founding, FSV Mainz 05 is not just a football club but an integral part of the identity of the city of Mainz. The history that began in 1905 continues to shape the club's philosophy. The Nullfünfer are known not only for their sporting successes but also for their deeply rooted community and unwavering team spirit that has accompanied the club over the years.