तराइन की दूसरी लड़ाई किस वर्ष हुई थी, जिसमें मुहम्मद गोरी ने पृथ्वीराज चौहान को हराया था?

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?