John C. Bogle was a transformative figure in American finance, best known as the founder of The Vanguard Group and the pioneer of the first index mutual fund. The provided text details his life from his educational roots at Princeton University to his professional evolution, emphasizing his belief in low-cost, passive investing over active market speculation. Beyond his business achievements, the biography highlights his philanthropic contributions and his personal resilience while managing severe health challenges. He advocated for the interests of the individual investor, prioritizing long-term stability and minimal fees as the most effective path to wealth. Ultimately, these records portray Bogle as a visionary leader