Which year did Jenson Button won his first ever Formula One World Drivers' Championship?
Explanation
Jenson Button won his first-ever Formula One World Drivers' Championship in 2009. After years of competing in Formula One, Button finally claimed his title with Brawn GP, a team that emerged from the ashes of Honda Racing. In a remarkable season, Button showcased his exceptional skills, consistency, and determination, securing six victories and consistently finishing on the podium. His successful campaign culminated in him being crowned the champion, fulfilling a lifelong dream and solidifying his name in Formula One history.