evidence: William Henry Gates III is best known as the founder and leader of Microsoft. He created the company in 1975 with his business partner Paul Allen. Though Paul Allen left the company some years later, William H. Gates remained with Microsoft for decades, heading it as the CEO until he left the position in 2000. [...] As of 2023, Bill Gates is 67 years old. He was born on October 28, 1955. Throughout the COVID-19 pandemic, he often spoke about the benefits of masks for older individuals. [...] Bill Gates is well known for founding Microsoft and being a shrewd, relentless businessman. But he's also known for his philanthropic efforts.