1453 की किस ऐतिहासिक घटना को पारंपरिक रूप से यूरोपीय पुनर्जागरण की शुरुआत का एक प्रमुख उत्प्रेरक माना 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?