John C. Bogle, founder of The Vanguard Group, is credited with creating the Bogleheads investing philosophy, a strategy rooted in simplicity, low-cost investing, and long-term discipline. Bogle revolutionized the investment world by launching the first index mutual fund for retail investors in 1976, offering a low-fee alternative to actively managed funds. The Bogleheads philosophy, named in his honor, emphasizes broad market diversification (typically through index funds), minimizing fees and taxes, and avoiding market timing or speculation. Bogle’s approach challenged the status quo of Wall Street by arguing that most actively managed funds fail to beat the market over time — especially after fees. Today, millions of investors follow his principles to build wealth steadily and passively. The Bogleheads online community continues to promote his teachings with open dialogue, education, and disciplined investing practices. Bogle’s legacy has empowered everyday investors to grow their wealth without needing to outsmart professional money managers.