Charles Munger is an American investor, businessman, and philanthropist, best known as the vice chairman of Berkshire Hathaway, a multinational conglomerate led by Warren Buffett. Born on January 1, 1924, Munger has played a significant role in the company's investment strategies and decision-making processes, contributing to its growth and success over the decades. Munger is also recognized for his intellectual approach to investing, emphasizing the importance of multidisciplinary thinking and rational decision-making. He co-founded the investment firm Munger, Tolles & Olson LLP and has been involved in various philanthropic efforts, particularly in education and healthcare.