वह भाषाविद् घटना जिसमें एक ही भाषा समुदाय में दो अलग-अलग रूप (जैसे साधु और चलित) सह-अस्तित्व में रहते हैं, क्या कहलाती 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?