नवाचार के प्रसार (diffusion of innovation) सिद्धांत के अनुसार, जो व्यक्ति किसी नए विचार को सबसे पहले अपनाता है, उसे क्या कहा जाता है?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?