Answer
In 1899, William Gillette made his debut as Sherlock Holmes in his own play, "Sherlock Holmes." Gillette's portrayal of the iconic detective became the definitive interpretation for decades, influencing subsequent adaptations and establishing many of the character's signature traits, including his deerstalker cap and curved pipe. Gillette's performance was highly acclaimed for its intelligence, wit, and physicality, and he continued to play the role for over 30 years.