Born on this day in Seattle, Washington, William H. Gates III (1955– ) helped bring the imagination of personal computing to everyday life. Inspired early by his parents’ example of teamwork and compassion, he carried that model of collaboration into everything he built — from Microsoft’s pioneering software to the Bill & Melinda Gates Foundation’s mission of shared good.

“I never took a day off in my twenties. Not one,” he said.

His builder’s mindset guided him from early lines of code to operating systems that shaped the world. Along the way, he often spoke about learning from mistakes and staying humble before hard problems, reminding us that progress grows from constant learning and renewal.

Beyond technology, his most enduring legacy may be the choice to give. Through his commitment to health, education, and opportunity, his philanthropy has strengthened vaccine access, supported global disease eradication, and created pathways for learning that change lives. He believes that improving the future is something we can build together.

The heart of his work is service. “The easiest way to feel good is to do good,” he said. From software to solutions, that spirit of practical optimism continues to light the way for dreamers who want their skills to serve something larger than themselves.

Happy birthday, Bill Gates. May your blend of curiosity and kindness keep inspiring new ideas and real-world impact.